Veröffentlichungen
Referierte Zeitschriften
Wagner, D.; Walther, G. (2024): Techno-Economic Analysis of Mixed Battery and Fuel Cell Electric Bus Fleets: A Case Study In: Applied Energy, Accepted
Yeates, C.; Abdelshafy, A.; Schmidt-Hattenberger, C.; Walther, G. (2024): Industrial CO2 transport in Germany: Comparison of pipeline routing scenarios In: International Journal of Greenhouse Gas Control, 104225, Issue 137. DOI: https://doi.org/10.1016/j.ijggc.2024.104225
Rütt, J.; Abdelshafy, A.; Walther, G. (2024): Using miscanthus and biochar as sustainable substrates in horticulture: an economic and carbon footprint assessment of their primary and cascading value chains In: Sustainable Production and Consumption, Accepted
Abdelshafy, A.; Lambert, M.; Walther, G. (2024): MENA region as a potential hydrogen supplier for the European market: analysing a prospective route between Kingdom of Saudi Arabia and Germany In: The Oxford Institute for Energy Studies, Link: https://www.oxfordenergy.org/publications/mena-region-as-a-potential-hydrogen-supplier-for-the-european-market-analysing-a-prospective-route-between-kingdom-of-saudi-arabia-and-germany/, Issue OIES Paper: ET31
Hendiani, S.; Walther, G. (2024): Double-Layer Multi-Criteria Group Decision-Making Approach Using Neutralized Possibility Degree-Based Decision Matrix with Fuzzy Information In: Engineering Applications of Artificial Intelligence, Volume 133, Pages 108276. DOI: https://doi.org/10.1016/j.engappai.2024.108276
Torkayesh, A.E.; Hendiani, S.; Walther, G.; Venghaus, S. (2024): Fueling the Future: Overcoming the Barriers to Market Development of Renewable Fuels in Germany Using a Novel Analytical Approach In: European Journal of Operational Research, Volume 316, Issue 3, Pages 1012-1033. DOI: https://doi.org/10.1016/j.ejor.2024.02.039
Frank, L.; Klopfer, A.; Walther, G. (2024): Designing Corporate Mobility as a Service - Decision Support and Perspectives In: Transportation Research Part A, Volume 182, Pages 104011. DOI: https://doi.org/10.1016/j.tra.2024.104011
Schleier, J.; Walther, G. (2024): Strategic Network Design for Recycling of EPS Insulation Material - Insights from a German Case Study In: International Journal of Production Research, Pages 5878-5904. DOI: https://doi.org/10.1080/00207543.2024.2302041
Thomä, S.; Walther, G.; Schiffer, M. (2024): Designing Tractable Piecewise Affine Policies for Multi-Stage Adjustable Robust Optimization In: Mathematical Programming. DOI: https://doi.org/10.1007/s10107-023-02053-0
Becker, T.; Wolff, M.; Linzenich, A.; Engelmann, L.; Arning, K.; Ziefle, M.; Walther, G. (2023): An Integrated Bi-Objective Optimization Model Accounting for the Social Acceptance of Renewable Fuel Production Networks In: European Journal of Operational Research, Volume 315, Issue 1. DOI: https://doi.org/10.1016/j.ejor.2023.11.044
Klopfer, A.; Frank, L.; Walther, G. (2023): Quantifying emission and cost reduction potentials of Corporate Mobility as a Service In: Transportation Research Part D, Volume 125, Pages 103985. DOI: https://doi.org/10.1016/j.trd.2023.103985
Hendiani, S.; Walther, G. (2023): TOPSISort-L: An extended likelihood-based interval-valued intuitionistic fuzzy TOPSIS-sort method and its application to multi-criteria group decision-making In: Expert Systems with Applications, Volume 233, Pages 121005. DOI: https://doi.org/10.1016/j.eswa.2023.121005
Trotter, P.; Becker, T.; Renaldi, R.; Wang, X.; Khosla, R.; Walther, G. (2023): The role of supply chains for the sustainability transformation of global food systems: A large-scale, systematic review of food cold chains In: Journal of Industrial Ecology, Accepted
Karbassi, V.; Trotter, P.; Walther, G. (2023): Diversifying the African energy system: Economic versus equitable allocation of renewable electricity and e-fuel production In: Applied Energy, Volume 350, Pages 121751 . DOI: 10.1016/j.apenergy.2023.121751
Abdelshafy, A.; Walther, G. (2023): Analyzing current carbon capture, utilization and storage (CCUS) research and pilot projects in the European cement sector In: The Oxford Institute for Energy Studies, Link: https://www.oxfordenergy.org/publications/analyzing-current-carbon-capture-utilization-and-storage-ccus-research-and-pilot-projects-in-the-european-cement-sector/, Issue OIES Paper: CM06
Amiri, M.; Meyer, J.C.; Walther, G. (2023): Multi-objective optimization of renewable fuel supply chains regarding cost, land use, and water use In: Applied Energy, Volume 349, Issue -, Pages 1-24. DOI: https://doi.org/10.1016/j.apenergy.2023.121652
Hendiani, S.; Walther, G. (2023): Sustainability performance evaluation of renewable energy systems using a new multi-expert multi-criteria interval type-2 fuzzy distance to ideal solution approach In: Applied Energy, Volume 347, Pages 121436. DOI: https://doi.org/10.1016/j.apenergy.2023.121436
Abdelshafy, A.; Hermann, A.; Herres-Pawlis, S.; Walther, G. (2023): Opportunities and challenges of establishing a regional bio-based Polylactic Acid supply chain In: Global Challenges, Volume 2200218. DOI: https://doi.org/10.1002/gch2.202200218
Frank, L.; Walther, G. (2023): Pooling effects from integrating private and corporate demand in car sharing systems In: Transportation Research Part D: Transport and Environment, Volume 118, Pages 103706. DOI: https://doi.org/10.1016/j.trd.2023.103706
Radloff, R.; Abdelshafy, A.; Walther, G. (2023): An integrative and prospective approach to regional material flow analysis: Modelling the decarbonisation of the North-Rhine Westphalian Steel Industry In: Journal of Industrial Ecology, Volume 37, Issue 3, Pages 662-675. DOI: https://doi.org/10.1111/jiec.13387
Abdelshafy, A.; Franzen, D.; Mohaupt, A.; Schüssler, J.; Bührig-Polaczek, A.; Walther, G. (2022): A Feasibility Study to Minimize the Carbon Footprint of Cast Iron Production while Maintaining the Technical Requirements In: Journal of Sustainable Metallurgy, Volume 9, Issue 1, Pages 249-265. DOI: https://doi.org/10.1007/s40831-022-00642-5
Merchan, A.L.; Fischöder, T.; Hee, J.; Lehnertz, M.; Osterthun, O.; Pielsticker, S.; Schleier, J.; Tiso, T.; Blank, L.; Klankermeyer, J.; Kneer, R.; Quicker, P.; Walther, G.; Palkovits, R. (2022): Chemical recycling of bioplastics: technical opportunities to preserve chemical functionality as path towards a circular economy In: Green Chemistry, Volume 24, Issue 24, Pages 9428-9449. DOI: https://doi.org/10.1039/D2GC02244C
Abdelshafy, A.; Walther, G. (2022): Using dynamic-locational material flow analysis to model the development of urban stock In: Building Research & Information, Volume 51, Issue 1, Pages 5-20. DOI: https://doi.org/10.1080/09613218.2022.2142495
Linzenich, A.; Engelmann, L.; Arning, K.; Becker, T.; Wolff, M.; Walther, G.; Ziefle, M. (2022): On the road to sustainable transport: Acceptance and preferences for renewable fuel production infrastructure In: Frontiers in Energy Research, Volume 10, Issue 989553. DOI: 10.3389/fenrg.2022.989553
Kandakoğlu, M.; BenAmor, S.; Walther, G. (2022): A robust multicriteria clustering methodology for portfolio decision analysis In: Computers & Industrial Engineering, Volume 174, Pages 108803. DOI: https://doi.org/10.1016/j.cie.2022.108803
Rütt, J.; Hennes, L.; Teubler, J.; Braun, B. (2022): How Compatible are Western European Dietary Patterns to Climate Targets? Accounting for Uncertainty of Life Cycle Assessments by Applying a Probabilistic Approach In: Sustainability, Volume 14, Issue 21, Pages 14449. DOI: https://doi.org/10.3390/su142114449
Simon, B. (2022): Material flows and embodied energy of direct air capture: a cradle to gate inventory of selected technologies In: Journal of Industrial Ecology
Schleier, J.; Simons, M.; Greiff, K.; Walther, G. (2022): End-of-Life treatment of EPS-based building insulation material - An estimation of future waste and review of treatment options In: Resources, Conservation & Recycling, Volume 187, Pages 106603. DOI: https://doi.org/10.1016/j.resconrec.2022.106603
Abdelshafy, A.; Lambert, M.; Walther, G. (2022): The role of CCUS in decarbonizing the cement industry: A German case study In: Energy Insight, Link: https://www.oxfordenergy.org/publications/the-role-of-ccus-in-decarbonizing-the-cement-industry-a-german-case-study/, Volume 115, Pages 1-31
Becker, T.; Schiffer, M.; Walther, G. (2022): A General Branch-and-Cut Framework for Rotational Workforce Scheduling In: INFORMS Journal on Computing, Volume 34, Issue 3, Pages 1548-1564. DOI: https://doi.org/10.1287/ijoc.2021.1149
Wolff, M.; Becker, T.; Walther, G. (2022): Long-term design and analysis of renewable fuel supply chains – An integrated approach considering seasonal resource availability In: European Journal of Operational Research, Volume 304, Issue 2, Pages 745-762. DOI: https://doi.org/10.1016/j.ejor.2022.04.001
Dirks, N.; Schiffer, M.; Walther, G. (2022): On the Integration of Battery Electric Buses into Urban Bus Networks In: Transportation Research Part C: Emerging Technologies, Volume 139, Issue 103628. DOI: https://doi.org/10.1016/j.trc.2022.103628
Abdelshafy, A.; Walther, G. (2022): Coupling carbon capture and utilization with the construction industry: opportunities in Western Germany In: Journal of CO2 Utilization, Volume 57, Issue 101866. DOI: https://doi.org/10.1016/j.jcou.2021.101866
Schaap, H.; Schiffer, M.; Schneider, M.; Walther, G. (2022): A Large Neighborhood Search for the Vehicle Routing Problem with Multiple Time Windows In: Transportation Science, Accepted, Volume 56, Issue 5, Pages 1369-1392. DOI: https://doi.org/10.1287/trsc.2021.1120
Abdelshafy, A.; Walther, G. (2022): Exploring the effects of energy transition on the industrial value chains and alternative resources: A case study from the German federal state of North Rhine-Westphalia (NRW) In: Resources, Conservation and Recycling, Volume 177, Issue 105992. DOI: https://doi.org/10.1016/j.resconrec.2021.105992
Sommer, V.; Becker, T.; Walther, G. (2021): Steering Sustainable End-of-Life Treatment of Glass and Carbon Fiber Reinforced Plastics Waste from Rotor Blades of Wind Power Plants In: Resources, Conservation & Recycling, Volume 181, Issue 106077. DOI: 10.1016/j.resconrec.2021.106077
Heydari, J.; Bineshpour, P.; Walther, G.; Ülkü, A. (2021): Reconciling conflict of interests in a green retailing channel with green sales effort In: Journal of Retailing and Consumer Services, Volume 64, Issue 102752. DOI: https://doi.org/10.1016/j.jretconser.2021.102752
Tsydenova, N.; Becker, T.; Walther, G. (2021): Optimised design of concrete recycling networks: The case of North Rhine-Westphalia In: Waste Management, Volume 135, Pages 309-317. DOI: https://doi.org/10.1016/j.wasman.2021.09.013
Dyckhoff, H.; Souren, R. (2021): Integrating multiple criteria decision analysis and production theory for performance evaluation: Framework and review In: European Journal of Operational Research, Volume 2977, Issue 3, Pages 795-816. DOI: https://doi.org/10.1016/j.ejor.2021.05.046
Frank, L.; Dirks, N.; Walther, G. (2021): Improving rural accessibility by locating multimodal mobility hubs In: Journal of Transport Geography, Volume 94, Issue 103111. DOI: https://doi.org/10.1016/j.jtrangeo.2021.103111
Alova, G.; Trotter, P.; Money, A. (2021): A machine-learning approach to predicting Africa’s electricity mix based on planned power plants and their chances of success In: Nature Energy, Volume 6, Issue 2, Pages 158-166. DOI: 10.1038/s41560-020-00755-9
Sommer, V.; Walther, G. (2021): Recycling and recovery infrastructures for glass and carbon fiber reinforced plastic waste from wind energy industry: A European case study In: Waste Management, Volume 121, Pages 265-275. DOI: 10.1016/j.wasman.2020.12.021
Schiffer, M.; Hiermann, G.; Rüdel, F.; Walther, G. (2021): A polynomial-time algorithm for user-based relocation in free-floating car sharing systems In: Transportation Research Part B, Volume 143, Pages 65-85. DOI: 10.1016/j.trb.2020.11.001
Grot, M.; Becker, T.; Steenweg, P. M. ; Werners, B. (2021): Enhanced Coverage by Integrating Site Interdependencies in Capacitated EMS Location Models In: Health Care Management Science, Volume 25, Issue 1, Pages 42-62. DOI: https://doi.org/10.1007/s10729-021-09562-4
Bruns, B.; Becker, T.; Riese, J.; Lier, S.; Werners, B. (2021): Efficient Production of Specialized Polymers with Highly Flexible Small-Scale Plants In: Chemical Engineering & Technology, Volume 44, Issue 6, Pages 1148-1152. DOI: https://doi.org/10.1002/ceat.202000591
Schiffer, M.; Klein, P.; Laporte, G.; Walther, G. (2021): Integrated planning for electric commercial vehicle fleets: A case study for retail mid-haul logistics networks In: European Journal of Operations Research, Volume 291, Issue 3, Pages 944-960. DOI: 10.1016/j.ejor.2020.09.054
Borning, M.; Doré, L.; Wolff, M.; Walter, J.; Becker, T.; Walther, G.; Moser, A. (2020): Opportunities and Challenges of Flexible Electricity-Based Fuel Production for the European Power System In: Sustainability, Volume 12, Issue 23, Pages 1-26. DOI: https://doi.org/10.3390/su12239844
Khosla, R.; Miranda, N.; Trotter, P.; Mazzone, A.; Renaldi, R.; McElroy, C.; Cohen, F.; Jani, A.; Perera-Salazar, R.; McCulloch, M. (2020): Cooling for sustainable development In: Nature Sustainability, Volume 4, Issue 3, Pages 201-208. DOI: https://doi.org/10.1038/s41893-020-00627-w
Becker, T.; Bruns, B.; Lier, S.; Werners, B. (2020): Decentralized Modular Production to Increase Supply Chain Efficiency in Chemical Markets: An Example of Polymer Production In: Journal of Business Economics, Volume 91, Issue 6, Pages 867-895. DOI: https://doi.org/10.1007/s11573-020-01019-4
Sommer, V.; Stockschläder, J.; Walther, G. (2020): Estimation of glass and carbon fiber reinforced plastic waste from end-of-life rotor blades of wind power plants within the European Union In: Waste Management, Volume 115, Pages 83 - 94. DOI: 10.1016/j.wasman.2020.06.043
Dirks, N.; Frank, L.; Baumgärtner, F.; Walther, G.; Letmathe, P. (2020): Identifikation kritischer Verbindungen des öffentlichen Personennahverkehrs im ländlichen Raum In: gis.Science, Volume 2, Issue 33, Pages 72 - 80
Becker, T. (2020): A Decomposition Heuristic for Rotational Workforce Scheduling In: Journal of Scheduling, Volume 23, Issue 5, Pages 539 - 554. DOI: https://doi.org/10.1007/s10951-020-00659-2
Siemon, M.; Schiffer, M.; Mitra, S.; Walther, G. (2020): Value-based Production Planning in Non-Ferrous Metal Industries – Application in the Copper Industry In: IISE Transactions, Volume 52, Issue 10, Pages 1063-1080. DOI: https://doi.org/10.1080/24725854.2020.1711992
Dyckhoff, H. (2019): Multi-criteria production theory: Convexity conditions and reasonable axioms In: Journal of Business Economics, Volume 89, Issue 6, Pages 719 - 735. DOI: https://doi.org/10.1007/s11573-019-00939-0
Siemon, M.; Schiffer, M.; Walther, G. (2019): Integrated purchasing and production planning for a non-Ferrous metal production network In: Omega, Volume 98, Issue 102136. DOI: https://doi.org/10.1016/j.omega.2019.102136
Wojcik, V.; Dyckhoff, H.; Clermont, M. (2019): Is data envelopment analysis a suitable tool for performance measurement and benchmarking in non-production contexts? In: Business Research, Volume 12, Issue 2, Pages 559 - 595. DOI: 10.1007/s40685-018-0077-z
Scheiper, B.; Schiffer, M.; Walther, G. (2019): The Flow Refueling Location Problem with Load Flow Control In: Omega, Volume 83, Pages 50 - 69. DOI: 10.1016/j.omega.2018.02.003
Hombach, L. E.; Doré, L.; Heidgen, K.; Maas, H.; Wallington, T. J.; Walther, G. (2018): Economic and Environmental Assessment of Current (2015) and Future (2030) Use of E-fuels in Light-Duty Vehicles in Germany In: Journal of Cleaner Production, Volume 207, Pages 153 - 162. DOI: 10.1016/j.jclepro.2018.09.261
Bongartz, D.; Doré, L.; Eichler, K.; Grube, T.; Heuser, B.; Hombach, L. E.; Robinius, M.; Pischinger, S.; Stolten, D.; Walther, G.; Mitsos, A. (2018): Comparison of light-duty transportation fuels produced from renewable hydrogen and green carbon dioxide In: Applied Energy, Volume 231, Pages 757 - 767. DOI: 10.1016/j.apenergy.2018.09.106
Grube, T.; Doré, L.; Hoffrichter, A.; Hombach, L. E.; Raths, S.; Robinius, M.; Nobis, M.; Schiebahn, S.; Tietze, V.; Schnettler, A.; Walther, G.; Stolten, D. (2018): An option for stranded renewables: electrolytic-hydrogen in future energy systems In: Sustainable Energy & Fuels, Volume 2, Issue 7, Pages 1500 - 1515. DOI: 10.1039/c8se00008e
Schmitt, R.; Heine, I.; Jiang, R.; Giedziella, F.; Basse, F.; Voet, H.; Lu, S. (2018): On the future of ramp-up management In: CIRP Journal of Manufacturing Science and Technology, Volume 23, Pages 217 - 225. DOI: 10.1016/j.cirpj.2018.03.001
Schiffer, M.; Schneider, M.; Walther, G.; Laporte, G. (2018): Vehicle routing and location-routing with intermediate stops: A review In: Transportation Science, Volume 53, Issue 2, Pages 319 - 622. DOI: 10.1287/trsc.2018.0836
Hombach, L. E.; Büsing, C.; Walther, G. (2018): Robust and sustainable supply chains under market uncertainties and different risk attitudes - a case study of the German biodiesel market In: European Journal of Operational Research, Volume 269, Issue 1, Pages 302 - 312. DOI: 10.1016/j.ejor.2017.07.015
Schiffer, M.; Walther, G. (2018): Strategic planning of electric logistics fleet networks: A robust location routing approach In: Omega, Volume 80, Pages 31 - 42. DOI: 10.1016/j.omega.2017.09.003
Schiffer, M.; Schneider, M.; Laporte, G. (2018): Designing sustainable mid-haul logistics networks with intra-route multi-resource facilities In: European Journal of Operational Research, Volume 265, Issue 2, Pages 517 - 532. DOI: 10.1016/j.ejor.2017.07.067
Schiffer, M.; Walther, G. (2018): An Adaptive Large Neighborhood Search for the Location-Routing Problem with Intra-route Facilities In: Transportation Science, Volume 52, Issue 2, Pages 229 - 496. DOI: 10.1287/trsc.2017.0746
Schiffer, M.; Walther, G. (2017): The Electric Location Routing Problem with Time Windows and Partial Recharging In: European Journal of Operational Research, Volume 260, Issue 3, Pages 995 - 1013. DOI: 10.1016/j.ejor.2017.01.011
Inghels, D.; Dullaert, W.; Raa, B.; Walther, G. (2016): Influence of composition, amount and life span of passenger cars on end-of-life vehicles waste in Belgium: a System Dynamics approach In: Transportation Research Part A: Policy and Practice, Volume 91, Pages 80 - 104. DOI: 10.1016/j.tra.2016.06.005
Hombach, L. E.; Cambero, C.; Sowlati, T.; Walther, G. (2016): Optimal design of supply chains for second generation biofuels incorporating European biofuel regulations In: Journal of Cleaner Production, Volume 133, Pages 565 - 575. DOI: 10.1016/j.jclepro.2016.05.107
Kieckhäfer, K.; Feld, V.; Jochem, P.; Wachter, K.; Spengler, T. S.; Walther, G.; Fichtner, W. (2015): Prospects for Regulating the CO2 Emissions from Passenger Cars within the European Union after 2023 In: Zeitschrift für Umweltpolitik und Umweltrecht, Volume 38, Issue 4, Pages 427 - 452
Hombach, L. E.; Walther, G. (2015): Pareto-efficient legal regulation of the (bio)fuel market using a bi-objective optimization model In: European Journal of Operational Research, Volume 245, Issue 1, Pages 286 - 295. DOI: 10.1016/j.ejor.2015.02.039
Quariguasi Frota Neto, J.; Walther, G. (2014): Not-for-profit supply chains for product take-back: practices, unique logistical challenges and directions for new research In: International Journal of Logistics Research and Applications, Volume 17, Issue 6, Pages 522 - 536. DOI: 10.1080/13675567.2014.912621
Walther, G.; Schatka, A.; Spengler, T. S. (2012): Design of regional production networks for second generation synthetic bio-fuel - A case study in Northern Germany In: European Journal of Operational Research, Volume 218, Issue 1, Pages 280 - 292. DOI: 10.1016/j.ejor.2011.09.050
Walther, G.; Steinborn, J.; Spengler, T. S.; Luger, T.; Herrmann, Ch. (2010): Implementation of the WEEE-directive - economic effects and improvement potentials for reuse and recycling in Germany In: The International Journal of Advanced Manufacturing Technology, Volume 47, Issue 5, Pages 461 - 474. DOI: 10.1007/s00170-009-2243-0
Walther, G.; Wansart, J.; Kieckhäfer, K.; Schnieder, E.; Spengler, T. S. (2010): Impact assessment in the automotive industry: mandatory market introduction of alternative powertrain technologies In: System Dynamics Review, Volume 26, Issue 3, Pages 239 - 261. DOI: 10.1002/sdr.453
Quariguasi Frota Neto, J.; Walther, G.; Bloemhof, J.; van Nunen, J.A.E.E.; Spengler, T. S. (2009): A methodology for assessing eco-efficiency in logistics networks In: European Journal of Operational Research, Volume 193, Issue 3, Pages 670 - 682. DOI: 10.1016/j.ejor.2007.06.056
Quariguasi Frota Neto, J.; Walther, G.; Bloemhof, J.; van Nunen, J.A.E.E.; Spengler, T. S. (2009): From Closed-loop to Sustainable Supply Chains: The WEEE case In: International Journal of Production Research, Volume 48, Issue 15, Pages 4463 - 4481. DOI: 10.1080/00207540902906151
Walther, G.; Schmid, E.; Spengler, T. S. (2009): Dezentrale Koordination von Stoffströmen in Recyclingnetzwerken In: Zeitschrift für Betriebswirtschaft, Volume 79, Issue 6, Pages 717 - 749. DOI: 10.1007/s11573-009-0257-6
Queiruga, D; Walther, G.; González-Benito, J.; Spengler, T. S. (2008): Evaluation of sites for the location of WEEE recycling plants in Spain In: Waste Management, Volume 28, Issue 1, Pages 181 - 190. DOI: 10.1016/j.wasman.2006.11.001
Walther, G.; Spengler, T. S.; Queiruga, D (2008): Facility location planning for treatment of large household appliances in Spain In: International Journal of Environmental Technology and Management, Volume 8, Issue 4, Pages 405 - 425. DOI: 10.1504/IJETM.2008.017510
Walther, G.; Schmid, E.; Spengler, T. S. (2008): Negotiation-Based Coordination in Product Recovery Networks In: International Journal of Production Economics, Volume 11, Issue 2, Pages 334 - 350. DOI: 10.1016/j.ijpe.2006.12.069
Spengler, T. S.; Walther, G. (2005): Strategische Planung von Wertschöpfungsnetzwerken zum Produktrecycling In: Zeitschrift für Betriebswirtschaft, Volume 75, Issue 3, Pages 247 - 275
Spengler, T. S.; Walther, G.; Queiruga, D (2005): Formulierung und Anwendung eines Planungsmodells zur Standortwahl von Recyclinganlagen für Haushaltsgroßgeräte in Spanien In: Logistik Management, Sonderheft Sustainability and Logistics, Volume 7, Issue 1, Pages 25 - 41
Walther, G.; Spengler, T. S. (2005): Impact of WEEE-directive on Reverse Logistics in Germany In: International Journal of Physical Distribution & Logistics Management, Volume 35, Issue 5, Pages 337 - 361. DOI: 10.1108/09600030510607337
Walther, G.; Spengler, T. S. (2004): Empirical analysis of collaboration potentials of SME in product recovery In: Progress in Industrial Ecology - An International Journal, Volume 1, Issue 4, Pages 363 - 384. DOI: 10.1504/PIE.2004.005853
Working Paper
Wagner, D.; Dirks, N.; Schiffer, M.; Walther, G. (2023): Designing Full Electric Bus Networks - On the Impact of Simplifying Assumptions on Feasibility and Total Costs, Working Paper
Schiffer, M.; Laporte, G.; Schneider, M.; Walther, G. (2017): The impact of synchronizing drivers breaks and recharging operations for electric vehicles In: Les Cahiers du GERAD, Volume G-2017-46
Schiffer, M.; Stütz, S.; Walther, G. (2017): Are ECVs breaking even? Competitiveness of electric commercial vehicles in retail logistics In: Les Cahiers du GERAD, Volume G-2017-47
Schiffer, M.; Klein, P.; Schneider, M.; Walther, G. (2017): A solution framework for the class of vehicle routing problems with intermediate stops In: OM-DPOR-01/2017, Chair of Operations Management RWTH Aachen University
Schiffer, M.; Stütz, S.; Walther, G. (2016): Working Paper OM-02/2016 In: Chair of Operations Management, RWTH Aachen University
Herausgeberschaften
Letmathe, P.; Fandel, G.; Spengler, T. S.; Walther, G. (2021): Sustainable operations In: Journal of Business Economics, Issue 91, Pages 123-125. DOI: https://doi.org/10.1007/s11573-021-01034-z
Lübbecke, M.; Koster, A.; Letmathe, P.; Madlener, R.; Peis, B.; Walther, G. (2016): Operations Research Proceedings 2014 - Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), RWTH Aachen University, Germany, September 2-5, 2014 In: Operations Research Proceedings. DOI: 10.1007/978-3-319-28697-6
Fandel, G.; Gössinger, R.; Walther, G. (2014): Sustainability in Supply Chains. Special Issue In: Journal of Business Economics, Volume 84, Issue 5, Pages 609 - 791. DOI: 10.1007/s11573-014-0728-2
Monographien
Abdelshafy, A. (2023): Towards climate-neutral and circular industrial systems - approaches for integrated modelling, assessment and planning at regional level. DOI: https://doi.org/10.18154/RWTH-2023-05379
Dyckhoff, H.; Souren, R. (2020): Performance Evaluation. Foundations and Challenges In: SpringerBriefs in Business, SpringerNature, Cham (CH). DOI: 10.1007/978-3-030-38732-7
Schiffer, M. (2017): Logistics networks with intermediate stops: Designing innovative and green solutions In: Operations Research Proceedings 2018, PhD Thesis, RWTH University, Pages 37 - 42. DOI: 10.1007/978-3-030-18500-8_6
Degel, E. J. (2017): Strategische Netzwerkplanung unter Berücksichtigung von Rohstoffpreis-Unsicherheiten am Beispiel der Sammlung und Verwertung von Photovoltaik-Modulen In: Apprimus Verlag - Edition Wissenschaft, 1. Auflage, ISBN 978-3-86359-505-0, 3-86359-505-X
Walther, G. (2010): Nachhaltige Wertschöpfungsnetzwerke In: Gabler-Verlag - Gabler Research: Produktion und Logistik, Wiesbaden
Walther, G. (2005): Recycling von Elektro- und Elektronik-Altgeräten - Strategische Planung von Stoffstrom-Netzwerken für kleine und mittelständische Unternehmen In: Deutscher Universitäts-Verlag - Gabler Edition Wissenschaft, Wiesbaden
Begutachtete Beiträge in Proceedings und Sammelbänden
Finkewirth, L.; Abdelshafy, A.; Walther, G. (2023): A comparative environmental assessment of the cast iron and steel melting technologies in Germany In: Energy Proceedings, Volume 29, Issue 9. DOI: https://doi.org/10.46855/energy-proceedings-10296
Abdelshafy, A.; Hermann, A.; Herres-Pawlis, S.; Walther, G. (2022): Investigating the opportunities of establishing a regional bio-based polylactic acid supply chain: A case study from North Rhine-Westphalia In: Chemie Ingenieur Technik, Volume 94, Issue 9, Pages 1307-1307. DOI: https://doi.org/10.1002/cite.202255120
Konferenz Artikel
Simon, B.; Walther, G. (2021): Circular Economy in Plastic Packaging Sector, Aiming at a Maximum Reduction of Environmental Burdens (Climate Impacts) In: Poster presented at the 78th Jubilee LCA DF, virtual/Zürich, September 13
Husemann, M.; Stumpf, E.; Dirks, N.; Walther, G. (2021): Towards the Design of Cost-Efficient Urban Air Taxi Systems In: AIAA Scitech 2021 Forum, Volume AIAA 2021. DOI: 10.2514/6.2021-1515
Begutachtete Beiträge in Proceedings und Sammelbänden
Grot, M.; Becker, T.; Steenweg, P. M. ; Werners, B. (2020): A Capacitated EMS Location Model with Site Interdependencies In: Operations Research Proceedings 2019, Pages 349 - 355. DOI: 10.1007/978-3-030-48439-2_42
Beran, L.; Dyckhoff, H. (2019): Global Biomass Supply and Sustainable Development In: Behnassi, M.; Gupta, H.; Pollmann, O. (Hrsg.) Human and Environmental Security in the Era of Global Risks, Springer; Cham, Pages 291 - 316. DOI: 10.1007/978-3-319-92828-9_15
Salazar, M.; Rossi, F.; Schiffer, M.; Onder, C.; Pavone, M. (2018): On the interaction between autonomous mobility-on-demand and the public transportation systems In: Proc. IEEE Int. Conf. on Intelligent Transportation Systems. DOI: 10.1109/ITSC.2018.8569381
Borning, M.; Doré, L.; van Bracht, N.; Wolff, M.; Walther, G.; Moser, A. (2018): Electricity-Based Fuel Production: An Assessment of its Impact on the European Power System Considering Flexibility In: 2018 15th International Conference on the European Energy Market (EEM), Pages 1 - 5. DOI: 10.1109/EEM.2018.8469916
Dyckhoff, H. (2018): Produktion und Umwelt In: Corsten, H.; Gössinger, R.; Spengler, T. (Hrsg.): Handbuch Produktions- und Logistikmanagement in Wertschöpfungsnetzwerken, DeGruyter, Berlin, Pages 949 - 975. DOI: 10.1515/9783110473803-049
Schaap, H.; Scheidweiler, R.; Schmidt, I. (2017): Ganzzahlige Optimierungsmethoden für die operative Planung von Erhaltungsmaßnahmen im Straßenbau In: Tagungsband Heureka, ISBN: 978-3-86446-177-4
Giedziella, F.; Walther, G. (2016): An Integrated Decision Support System Considering Interdependencies Between Time-to-Market and Market Diffusion under Competition In: Procedia CIRP, Volume 51, Pages 63 - 71. DOI: 10.1016/j.procir.2016.05.044
Walther, G.; Degel, E. J.; Hombach, L. E. (2016): Strategische Netzwerkplanung unter Unsicherheit In: Ahn, H.; Clermont, M.; Souren, R. (Hrsg.): Nachhaltiges Entscheiden - Beiträge zum multiperspektivischen Performancemanagement von Wertschöpfungsprozessen, Springer Fachmedien, Wiesbaden, 2016, Pages 449 - 467. DOI: 10.1007/978-3-658-12506-6_24
Degel, E. J.; Walther, G. (2016): Strategic Network Planning of Recycling of Photovoltaic Modules In: Lübbecke M., Koster A., Letmathe P., Madlener R., Peis B., Walther G. (Hrsg.): Operations Research Proceedings 2014 - Selected Papers of the International Annual Conference of the German Operations Research Society (GOR), Springer, Cham, Pages 115 - 120. DOI: 10.1007/978-3-319-28697-6_17
Hombach, L. E.; Walther, G. (2015): Evaluation of CO2 Abatement Measures for (Bio-) Fuel Production In: Dethloff J., Haasis HD., Kopfer H., Kotzab H., Schönberger J. (Hrsg.): Logistics Management, Part of the series Lecture Notes in Logistics, Springer, Cham, Pages 39 - 51. DOI: 10.1007/978-3-319-13177-1_4
Hombach, L. E.; Walther, G. (2014): Emissionsminderung durch den Einsatz von Biokraftstoffen In: Lübbecke, M.; Weiler, A.; Werners, B. (Hrsg.): Zukunftsperspektiven des Operations Research, Springer Fachmedien, Wiesbaden, 2014, Pages 251 - 261. DOI: 10.1007/978-3-658-05707-7_16
Hirzel, S.; Walther, G. (2014): Evaluation of Energy Efficiency Measures in Compressed Air Systems: A PROMETHEE Approach for Groups Facing Uncertainty In: Helber, S. et al. (Hrsg): Operations Research Proceedings 2012 - Selected Papers of the International Annual Conference of the German Operations Research Society (GOR), Leibniz University of Hannover, Germany, September 5-7, 2012, Springer, Cham, Pages 57 - 62. DOI: 10.1007/978-3-319-00795-3_9
Bock, M.; Walther, G. (2014): Balancing of Energy Supply and Residential Demand In: Helber, S. et al. (Hrsg): Operations Research Proceedings 2012 - Selected Papers of the International Annual Conference of the German Operations Research Society (GOR), Leibniz University of Hannover, Germany, September 5-7, 2012, Springer, Cham, Pages 443 - 448. DOI: 10.1007/978-3-319-00795-3_66
Herrmann, Ch.; Kieckhäfer, K.; Mennenga, M.; Skerlos, S.; Spengler, T. S.; Stehr, J.; Raichur, V.; Walther, G. (2012): A Framework to Analyze the Reduction Potential of Life Cycle Carbon Dioxide Emissions of Passenger Cars In: Dornfeld, D.; Linke, B. (Hrsg.): Leveraging technology for a sustainable world. Proceedings of the 19th CIRP Conference on Life Cycle Engineering, Springer, Berlin, Heidelberg, Pages 55 - 60. DOI: 10.1007/978-3-642-29069-5_10
Kieckhäfer, K.; Walther, G.; Axmann, J.; Spengler, T. S. (2009): Integrating agent-based simulation and system dynamics to support product strategy decisions in the automotive industry In: Rosetti, M. D.; Hill, R. R.; Johansson, B.; Dunkin, A.; Ingalls, R. (Hrsg.): Proceedings of the 2009 Winter Simulation Conference, Austin, Texas, USA, December 13-16, 2009, Pages 1433 - 1443. DOI: 10.1109/WSC.2009.5429295
Schmidt, K.; Walther, G.; Spengler, T. S.; Ernst, R. (2009): Towards Coordination of Decentralized Embedded System Development Processes In: Fleischmann, B.; Borgwardt, K.H.; Klein, R.; Tuma, A. (Hrsg): Operations Research Proceedings 2008, Springer, Berlin, Heidelberg, Pages 221 - 226. DOI: 10.1007/978-3-642-00142-0_36
Schmid, E.; Walther, G.; Spengler, T. S. (2008): Coordination in Recycling Networks In: Kalcics, J.; Nickel, S. (Hrsg.): Operations Research Proceedings 2007 - Selected Papers of the Annual International Conference of the German Operations Research Society (GOR). Springer, Berlin, Heidelberg, Pages 479 - 484. DOI: 10.1007/978-3-540-77903-2_74
Walther, G.; Schatka, A.; Spengler, T. S.; Bode, K.; Scholl, S. (2008): Designing Sustainable Supply Chains by Integrating Logistical and Process Engineering Aspects — A Material Flow Based Approach for 2nd Generation Synthetic Bio-Fuels In: Conference Kalcics, J.; Nickel, S. (Hrsg.): Operations Research Proceedings 2007 - Selected Papers of the Annual International of the German Operations Research Society (GOR), Springer, Berlin, Heidelberg, Pages 211 - 216. DOI: 10.1007/978-3-540-77903-2_33
Spengler, T. S.; Walther, G. (2008): Stichworte „Reverse Logistics" und "Stoffstrommanagement" In: Corsten, H.; Gössinger, R. (Hrsg.): Lexikon der Betriebswirtschaftslehre, 5. Auflage. Verlag Oldenbourg, München, Pages 710 - 712 and 797 - 799
Walther, G.; Steinborn, J.; Spengler, T. S. (2008): Robuste Planung von Netzwerken zum Produktrecycling In: Inderfurth, K.; Neumann, G.; Schenk, M.; Wäscher, G.; Ziems, D. (Hrsg.): Begleitband zur 13. Magdeburger Logistiktagung: Netzwerklogistik, LOGiSCH, Magdeburg, Pages 235 - 249
Spengler, T. S.; Walther, G. (2007): Koordination dezentraler Netzwerke zum Produktrecycling In: Corsten, H.; Missbauer, H. (Hrsg.): Produktions- und Logistikmanagement - Festschrift für Günther Zäpfel zum 65. Geburtstag, Verlag Vahlen, Berlin, Pages 573 - 595
Walther, G.; Schmid, E.; Spengler, T. S. (2006): Multi-Agentensysteme zur dezentralen Entscheidungsfindung in Entsorgungsnetzwerken In: Rey, U.; Lang-Koetz, C.; Tuma, A. (Hrsg.): Betriebliche Umweltinformationssysteme - System- und unternehmensübergreifender Daten- und Informationsaustausch. Shaker, Aachen, Pages 1 - 19
Walther, G.; Schmid, E.; Kramer, S.; Spengler, T. S. (2006): Planning and Evaluation of Sustainable Reverse Logistics Systems In: Haasis, H.D.; Kopfer, H.; Schönberger, J. (Hrsg): Operations Research Proceedings 2005 - Selected Papers of the Annual International Conference of the German Operations Research Society (GOR). Springer, Berlin, Heidelberg, Pages 577 - 582
Schmid, E.; Walther, G.; Spengler, T. S. (2006): Distributed Planning in Product Recovery Networks In: Haasis, H.D.; Kopfer, H.; Schönberger, J. (Hrsg.): Operations Research Proceedings 2005 - Selected Papers of the Annual International Conference of the German Operations Research Society (GOR), Springer, Berlin, Heidelberg, Pages 179 - 184
Walther, G.; Spengler, T. S.; Schmid, E. (2005): On distributed decision making in a reverse logistics environment In: Lasch, R.; Janker, C.G. (Hrsg.): Logistik Management - Innovative Logistikkonzepte, Deutscher Universitäts-Verlag, Wiesbaden, Pages 51 - 64
Stewing, C.; Walther, G. (2005): Betriebliche Umsetzung des Emissionshandels In: Elspas, M.; Salje, P.; Stewing, C. (Hrsg.): Handbuch Grundlagen und Praxis des Emissionshandels. Teil 1, Abschnitt 5, Kapitel 22-25, Carl Heymanns, Köln, Pages 333 - 380
Walther, G.; Schmid, E.; Spengler, T. S. (2005): Dezentrale Entscheidungsfindung in Demontagenetzwerken In: Dangelmaier, W., Döring, A.; Laroque, Ch.; Neumann, J. (Hrsg.): Innovatives Supply Chain Management durch intelligente Logistiknetze - Potentiale und Risiken neuer Technologien. LB-HNI-Verlagsschriftreihe, Band 13, Fraunhofer ALB, Paderborn
Walther, G.; Schmid, E.; Spengler, T. S. (2005): Decentralized Planning in Reverse Logistic Systems In: Lasch, R. et al. (Hrsg.): Logistik Management 05, Deutscher Universitäts-Verlag, Wiesbaden, Pages 51 - 64
Walther, G.; Spengler, T. S. (2004): Modelling and Evaluation of Material Flow Networks for Recycling of Discarded Products In: Spengler, T.; Voss, S.; Kopfer, H. (Hrsg.): Logistik Management - Prozesse, Systeme, Ausbildung. Physica, Heidelberg, Pages 363 - 381
Queiruga, D; Walther, G.; Spengler, T. S. (2003): Localización adecuada de empresas de reciclaje de RAEE In: III Jornadas Técnicas de Reciclado de Aparatos Eléctricos y Electrónicos. Círculos de Innovación y Tecnulogía, El Puerto de Santa María, 18.-19. September 2003
Sonstige Beiträge in Proceedings und Sammelbänden
Schiffer, M.; Stütz, S.; Walther, G. (2018): Electric Commercial Vehicles in Mid-Haul Logistics Networks In: Behaviour of Lithium-Ion Batteries in Electric Vehicles : Battery Health, Performance, Safety, and Cost, Springer, Cham., 1 edition, Pages 153 - 173. DOI: 10.1007/978-3-319-69950-9_7
Degel, E. J.; Walther, G. (2016): Strategische Netzwerkplanung unter Berücksichtigung von Rohstoffverfügbarkeitsrisiken am Beispiel des Recyclings von Photovoltaik-Modulen In: Tagungsband zum Workshop der GOR-Arbeitsgruppe „OR im Umweltschutz“ am 20./21. Februar 2014 in Heidelberg und 25./26. Februar 2015 in Aachen, Shaker Verlag, Aachen, 2016, Pages 1 - 17
Hirzel, S.; Walther, G. (2014): Entscheidungsunterstützung zur Auswahl von Energieeffizienzmaßnahmen für industrielle Druckluftsysteme In: Kunze, R.; Fichtner, W. (Hrsg.): Einsatz von OR-Verfahren zur Analyse von Fragestellungen im Umweltbereich - Tagungsband zum Workshop der GOR-Arbeitsgruppe „OR im Umweltschutz“ am 07. und 08. März 2013 in Karlsruhe, Shaker Verlag, Aachen, 2014, Pages 17 - 34. DOI: 10.2370/9783844027242
Bock, M.; Walther, G. (2014): Agentenbasierte Simulation zur Abbildung der Energienachfrage in Privathaushalten In: Kunze, R.; Fichtner, W. (Hrsg.): Einsatz von OR-Verfahren zur Analyse von Fragestellungen im Umweltbereich - Tagungsband zum Workshop der GOR-Arbeitsgruppe „OR im Umweltschutz“ am 07. und 08. März 2013 in Karlsruhe, Shaker Verlag, Aachen, 2014, Pages 85 - 100. DOI: 10.2370/9783844027242
Spengler, T. S.; Kieckhäfer, K.; Herrmann, Ch.; Mennenga, M.; Walther, G.; Hombach, L. E.; Sieg, G.; Kratzsch, U.; Dietrich, A.-M.; Wachter, K. (2013): STROM - Strategische Optionen der Automobilindustrie zur Maßnahmenallokation für die Migration nachhaltiger Antriebstechnologien in etablierten und aufstrebenden Märkten - Ergebnisbericht In: Projektträger DLR (ed.): Zentrale Projektergebnisse der BMBF-Fördermaßnahmen: Soziale Dimensionen von Klimaschutz und Klimawandel, Wirtschaftswissenschaften für Nachhaltigkeit, Nachwuchsgruppen in der Sozial-ökologischen Forschung, Pages 446 - 456
Spengler, T. S.; Walther, G.; Schatka, A. (2012): Analyse und Gestaltung von Produktionsnetzwerken für synthetische Biokraftstoffe - Eine Fallstudie in Norddeutschland In: Corsten, H; Roth, S. (Hrsg.): Nachhaltigkeit - Unternehmerisches Handeln in globaler Verantwortung, Gabler Verlag, Wiesbaden, Pages 215 - 239. DOI: 10.1007/978-3-8349-3746-9_11
Walther, G.; Engel, B.; Spengler, T. S. (2011): Integration of a New Emission-Efficiency Ratio into Industrial Decision-Making Processes - A Case Study on the Textile Chain In: Antes, R.; Hansjürgens, B.; Lethmate, P.; Pickl, S. (Hrsg.): Emissions Trading Institutional Design, Decision Making and Corporate Strategies, Springer, Berlin, Heidelberg, Pages 163 - 179. DOI: 10.1007/978-3-642-20592-7_10
Steinborn, J.; Walther, G.; Spengler, T. S. (2009): Rollierende Produktionsprogrammplanung in Closed-Loop Supply Chains In: Inderfurth, K.; Schenk, M.; Wäscher, G.; Zadek, D.; Ziems, D. (Hrsg): Begleitband zur 14. Magdeburger Logistiktagung: Sustainable Logistic, LOGiSCH, Magdeburg, Pages 167 - 182
Walther, G.; Steinborn, J.; Spengler, T. S. (2009): Variantenvielfalt und Lebenszyklusbetrachtungen im Remanufacturing In: Heyde, F., Tammer, C. (Hrsg): Tagungsband des Workshops der GOR-Arbeitsgruppen , Shaker, Aachen, Pages 179 - 204
Engel, B.; Walther, G.; Spengler, T. S. (2009): Integration of Carbon Efficiency into Corporate Decision-Making In: Fleischmann, B.; Borgwardt, K. H.; Klein, R.; Tuma, A. (Hrsg.): Operations Research Proceedings 2008, Springer, Berlin, Heidelberg, Pages 47 - 52. DOI: 10.1007/978-3-642-00142-0_8
Steinborn, J.; Walther, G.; Spengler, T. S. (2009): Production Planning with common parts in Closed-Loop Supply Chains In: Fleischmann, B.; Borgwardt, K. H.; Klein, R.; Tuma, A. (Hrsg.): Operations Research Proceedings 2008, Springer, Berlin, Heidelberg, Pages 59 - 64. DOI: 10.1007/978-3-642-00142-0_10
Walther, G.; Steinborn, J.; Spengler, T. S. (2009): Variantenvielfalt und Lebenszyklusbetrachtungen im Remanufacturing In: Heyde, F.; Löhne, A.; Tammer, C. (Hrsg.): Methods of Multicriteria Decision Theory and Applications, Shaker, Aachen, Pages 179 - 204
Kieckhäfer, K.; Walther, G.; Spengler, T. S. (2009): Konzeption einer Entscheidungsunterstützung für die Entwicklung von Produktstrategien im Automobilsektor In: Geldermann, J.; Lauven, L.-P. (Hrsg.): Einsatz von OR-Methoden zur Entscheidungsunterstützung: Tagungsband des Workshops der GOR-Arbeitsgruppen, Shaker, Aachen, Pages 5 - 21
Wansart, J.; Walther, G.; Spengler, T. S. (2008): Limiting motor vehicles CO2 emissions - a manufacturer In: International System Dynamics Society (Hrsg.): Conference Proceedings - The 2008 International Conference of the System Dynamics Society July 20-24, 2008; Athens, Greece
Walther, G.; Meyer, G.; Spengler, T. S.; Wansart, J. (2008): Regulatory Impact Assessment for the Transportation Sector - Case Study Germany In: International System Dynamics Society (Hrsg.): Conference Proceedings - The 2008 International Conference of the System Dynamics Society July 20-24, 2008; Athens, Greece
Herrmann, Ch.; Luger, T.; Walther, G.; Spengler, T. S.; Steinborn, J.; Schöps, D.; Brüning, R.; Wentland, A.-K.; Kratel, W. (2008): Empirical Study on Consumer Acceptance and Product Return Behavior In: Reichl, H.; Nissen, N. F.; Müller, J.; Deubzer, O. (Hrsg): First World ReUse Forum, Electronics Goes Green 2008+, Fraunhofer IRB, Stuttgart
Herrmann, Ch.; Spengler, T. S.; Luger, T.; Walther, G.; Steinborn, J. (2008): Business Processes and Network Management in Closed-Loop Supply Chains to close Product Cycles In: Reichl, H.; Nissen, N. F.; Müller, J.; Deubzer, O. (Hrsg.): Electronics Goes Green 2008+, Fraunhofer IRB, Stuttgart, Pages 889 - 894
Steinborn, J.; Walther, G.; Spengler, T. S.; Herrmann, Ch.; Luger, T. (2008): Common part strategies for variant management in Closed-Loop Supply Chains In: Reichl, H.; Nissen, N.F.; Müller, J.; Deubzer, O. (Hrsg.): Electronics Goes Green 2008+, Fraunhofer IRB, Stuttgart, Pages 895 - 900
Engel, B.; Möller, M; Schöps, D.; Steinborn, J.; Walther, G. (2008): Sustainable indicator system for recycling companies in Germany In: Reichl, H.; Nissen, N. F.; Müller, J.; Deubzer, O. (Hrsg.): Electronics Goes Green 2008+, Fraunhofer IRB, Stuttgart, Pages 455 - 460
Spengler, T. S.; Walther, G.; Schmid, E. (2008): Koordination von Recyclingnetzwerken In: Martinuzzi, A.; Tiroch, M. (Hrsg): Umweltwirtschaft - International, Interdisziplinär und Innovativ. Beiträge zur Tagung der Kommission Umweltwirtschaft im Verband der Hochschullehrer für Betriebswirtschaft e.V., 3.-5. Oktober 2007, Schriftenreihe des Research Institute for Managing Sustainability der Wirtschaftsuniversität Wien, Wien, Pages 125 - 132
Wansart, J.; Walther, G.; Spengler, T. S. (2008): Modellbasierte Entwicklung von Strategien für die Umsetzung von Emissionsgesetzen im Automobilbereich In: Heyder, F., Tammer, C. (Hrsg.): Tagungsband des Workshops der GOR-Arbeitsgruppen, Shaker, Aachen
Herrmann, Ch.; Walther, G.; Spengler, T. S.; Luger, T.; Steinborn, J. (2008): Business Processes and Network Management in Closed-Loop Supply Chains to close Product Cycles In: Reichl, H.; Nissen, N.F.; Müller, J.; Deubzer, O. (Hrsg): Electronics Goes Green 2008+, Fraunhofer IRB, Stuttgart, Pages 889 - 894
Walther, G.; Engel, B.; Spengler, T. S. (2007): Integration of a new emission-efficiency ratio into industrial decision-making processes In: Workshop Emissions Trading and Business, Universität Halle-Wittenberg, 7.-9. November 2007
Walther, G.; Schmid, E.; Spengler, T. S. (2007): Multi-agent systems for decision making in reverse logistics networks In: Proceedings on the 2nd International Conference ECO-X 2007: Sustainable Recycling Management & Recycling Network Centrope, Vienna, May 9-11, 2007, Pages 155 - 162
Herrmann, Ch.; Spengler, T. S.; Luger, T.; Schmid, E.; Walther, G. (2006): Design and Control of material flow networks for the recycling of WEEE In: Institute of Electrical and Electronics Engineers (Hrsg.): Proceedings of the 2006 IEEE International Symposium on Electronics and the Environment (ISEE) in conjunction with Electronics Recycling Summit. May 8-11, 2006, San Francisco, IEEE Operations Center, Piscataway, New Jersey, Pages 340 - 345
Walther, G.; Schmid, E.; Spengler, T. S. (2005): Assessment of WEEE Recycling Systems In: KERP - Kompetenzzentrum Elektronik & Umwelt (Hrsg.): Eco-X - Ecology and Economy in Electronics (Proceedings and CD-Rom), Wien, 8.-10. Juni 2005
Walther, G.; Spengler, T. S.; Ohlendorf, M.; Hesselbach, J. (2003): Enhanced Recycling of Waste Electrical and Electronic Equipment (WEEE) - A Two Level Approach In: Seliger, G. (Hrsg.): Proceedings of the Colloquium e-ecological Manufacturing, 27.-28. März 2003, Uni-edition, Berlin, Pages 179 - 182
Spengler, T. S.; Walther, G. (2003): Gestaltung von Stoffstrom-Netzwerken zum Produktrecycling In: Leopuld-Wildburger, U.; Rendl, F.; Wäscher, G. (Hrsg.): International Operations Research Proceedings 2002, Klagenfurt, 2.-5. September 2002, Springer, Berlin, Heidelberg, Pages 278 - 283
Queiruga, D; Walther, G.; Spengler, T. S. (2002): Registro y tratamiento de aparatos eléctricos y electrónicos en Alemania. Situación actual y tendencias futuras In: II Jornadas Técnicas de Reciclado de Aparatos Eléctricos y Electrónicos. Círculos de Innovación y Tecnulogía, El Puerto de Santa María, 26.-27. September 2002
Spengler, T. S.; Walther, G.; Hesselbach, J.; Ohlendorf, M. (2002): Product Assessment and Recycling Data Analysis as Precondition for Efficient WEEE Recycling In: Hesselbach, J., Ohlendorf, M. (Hrsg): Proceedings of the Fourth International Symposium Going Green - CARE INNOVATION 2002, 25.-28. November 2002. Austria Center Vienna, CD-ROM
Spengler, T. S.; Walther, G. (2002): Stoffstrom-Netzwerke zur ökonomisch effizienten Umsetzung der EU-Richtlinie zur Rücknahme und Verwertung von Elektro(nik)-Altgeräten In: Schenk, M.; Ziems, D.; Inderfurth, K. (Hrsg.): Logistik aus technischer und wirtschaftlicher Sicht. Begleitband zur 8. Magdeburger Logistik-Tagung, LOGiSCH, Magdeburg, Pages 209 - 224
Spengler, T. S.; Schröter, M.; Walther, G. (2001): Überbetriebliches Informationsflußkonzept zum stoffstrombasierten Supply Chain Management in der Elektro(nik)industrie In: Buhl, H. U.; Huther, A.; Reitwiesner, B. (Hrsg.): Information Age Economy. 5. Internationale Tagung Wirtschaftsinformatik, Physica, Heidelberg, Pages 773 - 786
Schmidt, M. ; Walther, G.; Schellenberg, T. (2000): Environmental Protection and Material Flow Management taking large Printing Works as an Example In: ERP Environment (Hrsg): Proceedings of the 2000 Eco-Management and Auditing Conference and Research Workshop on Corporate Environmental Management. June 29-30, 2000, Manchester, Pages 233 - 240
Sonstige Zeitschriften
Abdelshafy, A.; Walther, G. (2023): Carbon capture and storage: smokescreen, white elephant, or linchpin? In: SDG Action, Link: https://sdg-action.org/wp-content/uploads/2023/11/SDG-Action-COP28-edition.pdf, Pages 56-57
Spengler, T. S.; Kieckhäfer, K.; Wachter, K.; Herrmann, Ch.; Mennenga, M.; Dietrich, A.-M.; Sieg, G.; Walther, G.; Hombach, L. E. (2014): Jetzt aktiv werden - Handlungsfelder zur Förderung elektrischer Fahrzeuge In: Neue Mobilität, Volume 14, Pages 18 - 20
Walther, G.; Leistner, N.; Hombach, L. E. (2012): STROM - Towards sustainable drivetrain technologies In: InnovationsAllianz - Smart Cities, Page 44
Walther, G. (2011): Nachhaltige Antriebsstrategien in der Automobilindustrie In: Forschungsmagazin Output, Bergische Universität Wuppertal, Pages 30 - 34
Steinborn, J.; Schmidt, K.; Walther, G.; Spengler, T. S. (2010): Integrierte Produktions- und Aufarbeitungsplanung in Unternehmensnetzwerken In: UmweltWirtschaftsForum, Volume 18, Issue 2, Pages 83 - 89. DOI: 10.1007/s00550-010-0175-7
Steinborn, J.; Judkowiack, J.; Walther, G. (2010): Aufarbeitung von Geldgewinnspielgeräten und deren Komponenten In: UmweltWirtschaftsForum, Volume 18, Issue 2, Pages 131 - 138. DOI: 10.1007/s00550-010-0172-x
Walther, G.; Schatka, A.; Spengler, T. S. (2010): Gestaltung von Netzwerken zur Produktion von synthetischen Biokraftstoffen der zweiten Generation In: UmweltWirtschaftsForum, Volume 18, Issue 1, Pages 61 - 69. DOI: 10.1007/s00550-010-0168-6
Chang, L.; Mrowietz, M; Engel, B.; Hulbein, D.; Spengler, T. S.; Walther, G. (2009): KEI - ein neuer Ansatz zur Bewertung von Produktionsstandorten eines Unternehmens In: UmweltWirtschaftsForum, Volume 17, Issue 2, Pages 211 - 218. DOI: 10.1007/s00550-009-0131-6
Walther, G.; Engel, B.; Spengler, T. S. (2009): Bewertung und Verbesserung kumulierter Emissionsintensitäten In: UmweltWirtschaftsForum, Volume 17, Issue 2, Pages 191 - 199. DOI: 10.1007/s00550-009-0133-4
Schmid, E.; Walther, G.; Spengler, T. S. (2008): Gestaltung von Rahmenverträgen in Recyclingnetzwerken In: OR News, Volume 32, Pages 6 - 10
Luger, T.; Herrmann, Ch.; Steinborn, J.; Walther, G.; Spengler, T. S. (2008): Wertschöpfung durch Mehrfachnutzung - Potenziale, Herausforderungen, Lösungen In: Zeitschrift für wirtschaftlichen Fabrikbetrieb, Year 2008, Issue 9, Pages 602 - 606
Quariguasi Frota Neto, J.; Walther, G.; Bloemhof, J.; van Nunen, J.A.E.E.; Spengler, T. S. (2007): 德 国 关 于 电 子 电 气 设 备 的 闭 环 供 应 链 研 究:一种 生 态 效 益 计 算 方 法 (Closed-Loop Supply Chain for Electrical and Electronic Equipment in Germany: An Eco-efficient Approach) In: Journal of Beijing Jiaotong University (Social Sciences Edition), Volume 6, Issue 2, Pages 36 - 41
Walther, G.; Stölting, W.; Spengler, T. S. (2006): Lebenszyklusorientierte strategische Planung von Remanufacturing-Systemen In: UmweltWirtschaftsForum, Volume 14, Issue 3, Pages 17 - 22
Walther, G.; Spengler, T. S. (2006): Kooperationsformen in Reverse Logistics Netzwerken In: Industrie Management, Volume 22, Issue 3, Pages 49 - 52
Spengler, T. S.; Walther, G. (2005): Wertschöpfungsnetzwerke zur Umsetzung der WEEE-Richtlinie durch KMU - Handlungsempfehlungen für umweltpolitische Entscheidungsträger In: UmweltWirtschaftsForum, Volume 13, Issue 3, Pages 49 - 54
Queiruga, D; González-Benito, J.; Spengler, T. S.; Suárez González, I; Walther, G. (2003): La Directiva Europea sobre residuos de aparatos eléctricos y electrónicos (RAEE). Posición del fabricante de electrodomésticos español In: Economía Industrial, Volume 4, Issue 352, Pages 177 - 188
Queiruga, D; Walther, G.; Spengler, T. S. (2003): La localización de empresas de reciclaje de residuos de aparatos eléctricos y electrónicos (RAEE) en Espana In: Mundo Electrónico, Issue 348, Pages 34 - 38
Poster-Präsentationen (Auswahl)
Amiri, M.; Meyer, J.C.; Walther, G. (2024): Designing renewable fuel supply chains: A stochastic programming approach to address uncertainty in renewable electricity supply In: 12th International Conference Fuel Science – From Production to Propulsion
Linzenich, A.; Arning, K.; Engelmann, L.; Becker, T.; Wolff, M.; Walther, G.; Ziefle, M. (2021): Bridging the Gap: Integrating Acceptance Into Fuel Supply Chain Optimization In: 9th International Conference Fuel Science - From Production to Propulsion 2021, Aachen, June 22 to 24
Walter, J.; Manchanda, A.; Wolff, M.; Borning, M.; König, A.; Walther, G.; Mitsos, A.; Moser, A. (2021): Production Potentials of Biomass- and Electricity-Based Fuels in Europe under Uncertain Resource Availabilities In: 9th International Conference Fuel Science - From Production to Propulsion 2021, Aachen, June 22 to 24
Abdelshafy, A.; Walther, G. (2020): Reinisches Revier 2038: Analyzing the regional resources as a vital step towards bio-based sustainable supply chains In: Chancen des Strukturwandels – Neue Perspektiven für NRW
Simon, B.; Dumitru, M.; Walther, G. (2020): Scaling issues in Life Cycle Assessment In: Life Cycle Innovation Conference (LCIC 2020)
Wolff, M.; Becker, T.; Walther, G.; Moser, A. (2020): Planning Models for the Design of Bio-Hybrid Fuel Supply Chains In: Poster Abstract, 8th International Conference “Fuel Science - From Production to Propulsion”, Aachen, June 23 to 25
Walter, J.; Wolff, M.; Borning, M.; Walther, G.; Moser, A. (2020): Production Potential of Electricity-Based Fuels in Europe In: Poster Abstract, 8th International Conference “Fuel Science - From Production to Propulsion”, Aachen, June 23 to 25
Merchan, A.L.; Walther, G. (2019): Techno-economic and environmental evaluation of the production of bio-based succinic acid In: 4th International BioSC Symposium, Cologne, Germany, November 18-19
Doré, L.; Wolff, M.; Walther, G. (2019): Optimal design of value chains for bio-hybrid fuels In: Poster Abstract, 7th International Conference “Fuel Science - From Production to Propulsion”, Aachen, May 13-15, 2019
Doré, L.; Borning, M.; Wolff, M.; van Bracht, N.; Walther, G.; Moser, A. (2018): Future demand for electricity-based fuels and its implications on the power system In: Poster Abstract, 6th International TMFB Conference, Aachen, June 19-21, 2018
Walther, G.; Hombach, L. E.; Gröschel, J. (2012): STROM - Towards sustainable drivetrain technologies. Poster Abstract In: InnovationsAllianz - Smart Cities, Brussels, Belgium, May 22, 2012
Walther, G.; Hombach, L. E.; Gröschel, J. (2012): Strategische Optionen der Automobilindustrie für die Migration nachhaltiger Antriebstechnologien In: 4. Deutscher Elektro-Mobil Kongress, Essen, 14.-15. Juni 2012
Herrmann, Ch.; Luger, T.; Spengler, T. S.; Steinborn, J.; Wansart, J. (2008): Business Processes and Network Management in Closed-Loop Supply Chains to close Product Cycles In: Poster Abstract, 5. BMBF Forum für Nachhaltigkeit. Forschung für Nachhaltigkeit - Treiber für Innovation, 23.-25. September 2008, Berlin
Steinborn, J.; Walther, G.; Spengler, T. S. (2008): Closed-Loop Supply Chain Management with Common Parts In: Poster Abstract, 8th Closed-Loop Supply Chain workshop (CLSC8), October 8-11, 2008, Atlanta, USA
Steinborn, J.; Walther, G.; Spengler, T. S. (2008): Common part strategies and product recycling activities In: Poster Abstract, 5. BMBF Forum für Nachhaltigkeit. Forschung für Nachhaltigkeit - Treiber für Innovation, 23.-25. September 2008, Berlin
Steinborn, J.; Walther, G.; Spengler, T. S. (2007): Networks, business processes and IT-management in remanufacturing - conceptual framework and case study research In: Poster Abstract, 7th Closed-Loop Supply Chain workshop (CLSC7),October 14-16, 2007, Thessaloniki, Greece
Vorträge (Auswahl)
Bogs, S.; Abdelshafy, A.; Walther, G. (2024): Developing a game theoretic approach for planning a CO2 pipeline network. Annual conference of the Society for Operations Research in Germany, 04. September - 06. September 2024, Munich, Vortrag am 06. September 2024
Amiri, M.; Thomä, S.; Walther, G. (2024): Robust optimization of a renewable fuel supply chain network under uncertain demand. ANNUAL CONFERENCE OF THE OPERATIONS RESEARCH SOCIETY OF GERMANY, 03. September - 06. September 2024, München, Vortrag am 05. September 2024
Schleier, J.; Walther, G. (2024): Robust reverse logistics network design for polystyrene-based building insulation under uncertainty. Annual conference of the Society for Operations Research in Germany (GOR e.V.), 03. September - 06. September 2024, München, Vortrag am 05. September 2024
Stadnichuk, V.; Bogs, S.; Abdelshafy, A.; Walther, G. (2024): Towards an optimum carbon backbone: A Bilevel Model Approach for Efficient CO2 Pipeline Design and Price Policy in Germany. 33rd European Conference on Operational Research, 30. June - 03. July 2024, Copenhagen, Vortrag am 03. July 2024
Hendiani, S.; Walther, G. (2024): Evaluating Sustainability in Renewable Energy Systems: Introducing a Novel Fuzzy Multi-Criteria Distance to Ideal Solution Approach. 33rd European Conference on Operational Research, 30. June - 03. July 2024, Copenhagen, Vortrag am 03. July 2024
Amiri, M.; Meyer, J.C.; Walther, G. (2024): A stochastic mixed-integer programming approach to optimize a renewable fuel supply chain under uncertainty of renewable electricity supply. 33rd European Conference on Operational Research, 30. June - 03. July 2024, Copenhagen, Vortrag am 01. July 2024
Stadnichuk, V.; Schiffer, M.; Walther, G. (2023): Bilevel Models in Transport Network Design: A Study on Exact Algorithms. FRICO23, 14. August - 18. August 2023, Eindhoven, Vortrag am 16. August 2023
Stadnichuk, V.; Merten, L.; Larisch, C.; Walther, G. (2023): Strengthening the sustainable transport network by optimizing mobility hub locations. Annual conference of the Society for Operations Research in Germany, 29. August - 01. September 2023, Hamburg, Vortrag am 01. September 2023
Stadnichuk, V.; Schiffer, M.; Walther, G. (2023): Planning of Large-Scale Car-Free Zones. Conference Logistikmanagement 2023, 13. September - 14. September 2023, Dresden, Vortrag am 14. September 2023
Schleier, J.; Walther, G. (2023): Designing reverse logistic networks for expanded polystyrene waste from building insulation. Annual conference of the Society for Operations Research in Germany (GOR e.V.), 29. August - 01. September 2023, Hamburg, Vortrag am 01. September 2023
Amiri, M.; Meyer, J.C.; Walther, G. (2023): A two-stage stochastic mixed-integer programming approach for the optimal design of a renewable fuel supply chain. ANNUAL CONFERENCE OF THE OPERATIONS RESEARCH SOCIETY OF GERMANY, 29. August - 01. September 2023, Hamburg, Vortrag am 31. August 2023
Amiri, M.; Meyer, J.C.; Walther, G. (2023): Renewable fuel supply chain network design and sustainability: A multi-objective optimization approach. 4th Conference of the EURO Working Group on Sustainable Supply Chains, 30. June - 01. July 2023, Hagen, Vortrag am 30. June 2023
Amiri, M.; Meyer, J.C.; Walther, G. (2023): An Optimal Design for a Renewable Fuel Supply Chain Network With Economic and Environmental Considerations. 11th Fuel Science Center International Conference, 23. May - 25. May 2023, Aachen, Vortrag am 24. May 2023
Klopfer, A.; Frank, L.; Walther, G. (2022): Design and Analysis of Corporate Mobility as a Service (CMaaS) Solutions. 27th International Conference on Urban Planning and Regional Development in the Information Society (REAL Corp), 14. November - 16. November 2022, Vienna, Vortrag am 15. November 2022
Stadnichuk, V.; Schiffer, M.; Walther, G. (2022): A Novel Reformulation Technique for a Large Class of Bi Level Network Design Problems. Annual conference of the Society for Operations Research in Germany, 06. September - 09. September 2022, Karlsruhe, Vortrag am 08. September 2022
Amiri, M.; Walther, G. (2022): Bi-objective optimization of renewable fuel supply chains regarding total costs and land-use. ANNUAL CONFERENCE OF THE OPERATIONS RESEARCH SOCIETY OF GERMANY, 06. September - 09. September 2022, Karlsruhe, Vortrag am 07. September 2022
Rütt, J. (2022): Accounting for uncertainty – Benchmarking carbon footprints of dietary patterns to climate targets applying a probabilistic approach. Centennial Congress of the International Geographic Union, 18. July - 22. July 2022, Paris, Vortrag am 20. July 2022
Rütt, J. (2022): How compatible are western European dietary patterns to climate targets? An evaluation applying a probabilistic approach. Global Conference on Economic Geography, 06. June - 10. June 2022, Dublin, Vortrag am 10. June 2022
Abdelshafy, A.; Walther, G. (2021): Using the urban stock as a carbon sink: a case study from the German federal state of North Rhine-Westphalia. Trondheim Carbon Capture and Storage Conference (TCCS-11), 22. June - 23. June 2021, Virtual/Trondheim, Vortrag am 23. June 2021
Wolff, M.; Becker, T.; Walther, G. (2021): Strategic Supply Chain Design for Biohybrid Fuels Considering Renewable Resource Availability – A European Case Study. 9th International Conference Fuel Science - From Production to Propulsion 2021, 22. June - 24. June 2021, Aachen, Vortrag am 22. June 2021
Schleier, J.; Simons, M.; Greiff, K.; Walther, G. (2021): Economic Optimization and Analysis of Reverse Logistics Systems for EPS from ETICS. 3rd Conference on Sustainable Supply Chains, 22. July - 23. July 2021, Virtual
Abdelshafy, A.; Merchan, A.L.; Walther, G. (2021): Designing a sustainable supply chain for bio-based succinic acid in North Rhine-Westphalia. 3rd Conference on Sustainable Supply Chains, 22. July - 23. July 2021, Virtual
Merchan, A.L.; Walther, G. (2021): Ex-ante evaluation of novel biotechnology processes for the production of bio-based succinic acid. SETAC Europe 31st Annual Meeting, 03. May - 06. May 2021, Virtual
Merchan, A.L.; Walther, G. (2021): Ex-ante evaluation of novel biotechnology processes for the production of bio-based succinic acid. 15th Conference Society And Materials - EcoSD, 10. May - 11. May 2021, Virtual
Simon, B.; Klopfer, A.; Walther, G. (2020): How Can Graphs Contribute to Environmental Assessments? Network analysis of the plastic packaging industry in North Rhine-Westphalia to evaluate increased recycling rate. Life Cycle Innovation Conference (LCIC 2020), 26. August - 28. August 2020, Virtual, Vortrag am 27. August 2020
Merchan, A.L.; Walther, G. (2020): Life Cycle Assessment of the production of bio-based succinic acid from maize stover. Interdisciplinary Circular Economy Conference 2020, 30. November - 03. December 2020, Virtual
Merchan, A.L.; Walther, G. (2019): Life Cycle Assessment of the production of bio-based succinic acid from maiz stover. 4th meeting of the FNRS LCA Contact group, 02. December 2019, Liège
Sommer, V.; Walther, G. (2019): Backward supply chain design for the recycling of wind power plants rotor blades. Workshop der Arbeitsgruppe „OR im Umweltschutz“ der Gesellschaft für Operations Research e.V, 16. May - 17. May 2019, Karlsruhe, Vortrag am 17. May 2019
Dirks, N.; Schiffer, M.; Walther, G. (2019): Integration batterieelektrischer Busse in urbane Busnetzwerke. Gemeinsamen Herbsttagung der Wissenschaftlichen Kommissionen Nachhaltigkeitsmanagement und Produktionswirtschaft des Verbandes der Hochschullehrer für Betriebswirtschaft e.V, 24. October - 25. October 2019, Aachen
Frank, L.; Walther, G. (2019): Synergieeffekte eines integrierten Carsharing-Angebots für private und betriebliche Nutzer. Gemeinsame Herbsttagung der Wissenschaftlichen Kommissionen Nachhaltigkeitsmanagement und Produktionswirtschaft des Verbandes der Hochschullehrer für Betriebswirtschaft e.V, 24. October - 25. October 2019, Aachen
Wolff, M.; Becker, T.; Walther, G. (2019): Optimal design and operation of renewable fuel supply chains. International Annual Conference of the German OR Society 2019, 03. September - 06. September 2019, Dresden
Wolff, M.; Doré, L.; Becker, T.; Walther, G. (2019): Strategisch-operative Planung von Wertschöpfungsnetzwerken zur Herstellung bio-hybrider Kraftstoffe. 8. Statuskonferenz Energetische Biomassenutzung, 17. September - 18. September 2019, Leipzig
Becker, T. (2019): A Decomposition Heuristic for Rotational Workforce Scheduling. International Annual Conference of the German OR Society 2019, 04. September - 06. September 2019, Dresden, Vortrag am 04. September 2019
Dirks, N.; Frank, L.; Walther, G. (2019): Designing Intermodal Transportation Systems. Mobil.TUM 2019 International Scientific Conference on Mobility and Transport, 11. September - 12. September 2019, Munich
Rüdel, F.; Schiffer, M.; Walther, G. (2019): User-based relocation strategies in free-floating carsharing systems. International Annual Conference of the German OR Society 2019, 04. September - 06. September 2019, Dresden, Vortrag am 05. September 2019
Doré, L.; Becker, T.; Walther, G. (2019): Hybrid Production Networks for Renewable Fuels. International Annual Conference of the German OR Society 2019, 04. September - 06. September 2019, Dresden, Vortrag am 04. September 2019
Scheiper, B.; Schiffer, M.; Walther, G. (2019): Planning of fast charging infrastructure for battery electric vehicles along motorways considering the interaction with the electrical grid. International Annual Conference of the German OR Society 2019, 04. September - 06. September 2019, Dresden, Vortrag am 04. September 2019
Dirks, N.; Schiffer, M.; Walther, G. (2019): Integrating Battery Electric Buses into Urban Bus Networks. International Annual Conference of the German OR Society 2019, 04. September - 06. September 2019, Dresden, Vortrag am 04. September 2019
Frank, L.; Dirks, N.; Walther, G. (2019): Modeling Intermodality to Improve Rural Accessibility. International Annual Conference of the German OR Society 2019, 04. September - 06. September 2019, Dresden, Vortrag am 05. September 2019
Kreuz, M.; Schiffer, M.; Walther, G.; Hombach, L. E.; Heinzmann, N.; Maas, H. (2019): An integrated hybrid simulation and optimization model to meet legal CO2 fleet emission thresholds in the automotive industry towards 2030. Annual Meeting of the German Society of System Dynamics 2019, 23. May - 24. May 2019, Braunschweig, Vortrag am 24. May 2019
Baumgärtner, F.; Dirks, N.; Frank, L. (2019): Identifying Potential in Rural Transportation Networks. GI_Forum Symposium and Exhibit Geographic Information Science, 02. July - 05. July 2019, Salzburg
Borning, M.; Doré, L.; van Bracht, N.; Wolff, M.; Walther, G.; Moser, A. (2019): Electricity-Based Fuel Production: An Assessment of its Impact on the European Power System Considering Flexibility. 7th International Conference “Fuel Science - From Production to Propulsion", 13. May - 15. May 2019, Aachen, Vortrag am 13. May 2019
Doré, L.; Becker, T.; Walther, G. (2019): Supply chain design for the production of bio hybrid fuels. Workshop der Arbeitsgruppe „OR im Umweltschutz“ der Gesellschaft für Operations Research e.V, 16. May - 17. May 2019, Karlsruhe, Vortrag am 17. May 2019
Frank, L.; Dirks, N.; Baumgärtner, F. (2019): Improving Accessibility in Suburban and Rural Areas. Jahrestagung 2019 des Arbeitskreises Verkehr der Deutschen Gesellschaft für Geographie (DGfG), 09. May - 10. May 2019, Würzburg
Sommer, V.; Stockschläder, J. (2018): Abfälle aus faserverstärkten Kunststoffen - Massenprognose und Verwertungskonzept. 8. Wissenschaftskongress „Abfall- und Ressourcenwirtschaft, 15. March - 16. March 2018, Wien, Vortrag am 16. March 2018
Sommer, V.; Walther, G. (2018): Reverse logistic network for fiber reinforced plastic waste from wind power plants. International Annual Conference of the German OR Society 2018, 12. September - 14. September 2018, Brüssel, Vortrag am 12. September 2018
Kreuz, M.; Schiffer, M.; Walther, G.; Hombach, L. E.; Heinzmann, N.; Maas, H. (2018): A hybrid simulation and optimization approach towards meeting legal CO2 fleet emission thresholds in the automotive industry. Automotive PhD students workshop 2018, 29. November - 30. November 2018, Frankfurt (Oder), Vortrag am 30. November 2018
Kreuz, M.; Schiffer, M.; Walther, G.; Hombach, L. E.; Heinzmann, N.; Maas, H. (2018): Manufacturer’s strategies to meet legal CO2 emission thresholds: A hybrid simulation and optimization approach. Annual Workshop of the GOR-AG, 11. October - 12. October 2018, Bielefeld, Vortrag am 12. October 2018
Schaap, H.; Schiffer, M.; Schneider, M.; Walther, G. (2018): A large neighborhood search metaheuristic for the vehicle routing problem with multiple time windows. International Annual Conference of the German OR Society 2018, 12. September - 14. September 2018, Brussels, Vortrag am 12. September 2018
Kreuz, M.; Schiffer, M.; Hombach, L. E.; Heinzmann, N.; Maas, H.; Walther, G. (2018): Towards fleet emission targets in the automotive industry: A hybrid simulation and optimization approach. International Annual Conference of the German OR Society 2018, 12. September - 14. September 2018, Brussels, Vortrag am 12. September 2018
Borning, M.; Doré, L.; van Bracht, N.; Wolff, M.; Walther, G.; Moser, A. (2018): Electricity-Based Fuel Production: An Assessment of its Impact on the European Power System Considering Flexibility. 15th International Conference on the European Energy Market, 27. June - 29. June 2018, Lodz, Vortrag am 29. June 2018
Bongartz, D.; Burre, J.; Deutz, S.; Doré, L.; Eichler, K.; Grube, T.; Heuser, B.; Hombach, L. E.; Robinius, M.; Schulze Langenhorst, L.; Bardow , A.; Pischinger, S.; Stolten, D.; Walther, G.; Mitsos, A. (2017): Transportation Fuels from Renewable Hydrogen and Green Carbon Dioxide – A Technical, Economic and Environmental Evaluation. AIChE Annual Meeting, 29. October - 03. November 2017, Minneapolis
Schiffer, M.; Walther, G. (2017): Strategic planning of electric logistics fleets: A robust location-routing approach. Annual Workshop of the EURO Working Group on Vehicle Routing and Logistics optimization (VeRoLog), 10. July - 12. July 2017, Amsterdam
Rüdel, F.; Schiffer, M.; Walther, G. (2017): User-based relocation strategies in free-floating car-sharing systems. Annual Workshop of the EURO Working Group on Vehicle Routing and Logistics optimization (VeRoLog), 10. July - 12. July 2017, Amsterdam, Vortrag am 10. July 2017
Giedziella, F.; Walther, G. (2017): Impact of agile new product development on time‐to‐market and market diffusion under competition. The 2017 POMS International Conference in Israel, 27. June - 29. June 2017, Tel Aviv, Vortrag am 28. June 2017
Schaap, H.; Scheidweiler, R.; Schmidt, I. (2017): Ganzzahlige Optimierungsmethoden für die operative Planung von Erhaltungsmaßnahmen im Straßenbau. Heureka '17 - Optimierung in Verkehr und Transport, 22. March - 23. March 2017, Haus der Wirtschaft, Stuttgart, Vortrag am 23. March 2017
Kandakoğlu, M.; Walther, G. (2016): SMAA-Based Approach for Project Portfolio Selection with Uncertain and Incomplete Information. International Annual Conference of the German OR Society 2016, 30. August - 02. September 2016, Hamburg, Vortrag am 01. September 2016
Walther, G. (2016): OR for Future Mobility: Designing Sustainable Means of Transportation. International Annual Conference of the German OR Society 2016, 30. August - 02. September 2016, Hamburg, Vortrag am 01. September 2016
Scheiper, B.; Schiffer, M.; Walther, G. (2016): Integrated Planning of Charging Infrastructure for Battery Electric Vehicles considering Interdependencies with the Electrical Grid. International Annual Conference of the German OR Society 2016, 30. August - 02. September 2016, Hamburg, Vortrag am 31. August 2016
Schiffer, M.; Walther, G. (2016): Strategic Planning of Electric Logistic Fleet Networks: A Robust Location Routing Approach. International Annual Conference of the German OR Society 2016, 30. August - 02. September 2016, Hamburg, Vortrag am 31. August 2016
Giedziella, F.; Walther, G. (2016): An Integrated Decision Support System Considering Interdependencies Between Time-to-Market and Market Diffusion under Competition. The 34th International Conference of the System Dynamics Society 2016, 17. July - 21. July 2016, Delft, Vortrag am 18. July 2016
Hombach, L. E.; Walther, G. (2016): Sustainable Biofuel Supply Chains Considering Economic, Ecologic, and Social Objectives. 1st Conference on Sustainable Supply Chains, 01. July - 02. July 2016, Aachen
Schiffer, M.; Walther, G. (2016): The Location Routing Problem with Intraroute Facilities. Annual Workshop of the EURO Working Group on Vehicle Routing and Logistics optimization (VeRoLog), 06. June - 08. June 2016, Nantes, Vortrag am 07. June 2016
Schiffer, M.; Walther, G. (2016): The Location Routing Problem with Intraroute Facilities. Route 2016 - International Workshop on Vehicle Routing, Intermodal Transport and Related Areas, 01. June - 04. June 2016, Rambouillet, Vortrag am 03. June 2016
Giedziella, F.; Walther, G. (2016): An Integrated Decision Support System Considering Interdependencies Between Time-to-Market and Market Diffusion under Competition. 3rd International Conference on Ramp-Up Management 2016, 23. June - 24. June 2016, Aachen, Vortrag am 23. June 2016
Bongartz, D.; Doré, L.; Eichler, K.; Grube, T.; Heuser, B.; Hombach, L. E.; Schiebahn, S.; Walther, G.; Mitsos, A. (2016): Technical and Environmental Comparison of Options for Introducing Renewable Hydrogen into the Transportation Sector. 4th International TMFB Conference, 22. June 2016, Aachen
Liebke, V.; Walther, G. (2015): Technologie- und Prozesspfade der Stahlindustrie unter Berücksichtigung umweltorientierter Kriterien. Logistikmanagement 2015, 16. September - 18. September 2015, Braunschweig, Vortrag am 16. September 2015
Schiffer, M.; Walther, G. (2015): The Electric Location Routing Problem with Time Windows and Partial Recharging. Logistikmanagement 2015, 17. September - 18. September 2015, Braunschweig, Vortrag am 17. September 2015
Hombach, L. E.; Walther, G. (2015): Robust multi-objective optimization of the biofuel sector considering economic, ecologic, and social objectives. 27th European Conference on Operational Research 2015, 12. July - 15. July 2015, Glasgow, Vortrag am 13. July 2015
Feld, V.; Walther, G. (2015): The effect of hospital operator types on strategic planning of hospital infrastructures in Germany. 27th European Conference on Operational Research 2015, 12. July - 15. July 2015, Glasgow, Vortrag am 13. July 2015
Feld, V.; Walther, G. (2015): Strategische Infrastrukturplanung für Krankenhäuser. Tagung der GOR-AG Health Care 2015 in München, 27. February 2015, Munich
Hombach, L. E.; Walther, G. (2015): Supply chain management for biofuels under consideration of biomass availability. Tagung des BioSC, 30. April 2015, Bonn, Vortrag am 30. April 2015
Degel, E. J.; Walther, G. (2015): Strategic Network Planning for the Recycling of PV Panels considering Resource Price Uncertainties. Tagung der GOR-AG: OR im Umweltschutz, 25. February 2015, Aachen
Hombach, L. E.; Walther, G. (2014): Optimal design of efficient supply chains for biofuels, Rheinische Friedrich-Wilhelms-Universität Bonn, Institute for Food and Resource Economics (ILR), Chair of Production Economics
Hombach, L. E.; Walther, G. (2014): Developing a decision support framework to regulate the fuel / bio-fuel sector under consideration of eco- nomical, ecological and social objectives. International Annual Conference of the German OR Society 2014, 05. September 2014, Aachen
Bock, M.; Walther, G. (2014): Demand side management for the household sector — case study of prospective household technologies. International Annual Conference of the German OR Society 2014, 05. September 2014, Aachen
Feld, V.; Walther, G. (2014): Strategic planning of coverage for inpatient healthcare. International Annual Conference of the German OR Society 2014, 04. September 2014, Aachen
Hombach, L. E.; Walther, G. (2014): Analyse politischer Rahmenbedingungen für die Produktion von Biokraftstoffen. Herbsttagung der wissenschaftlichen Kommission Nachhaltigkeitsmanagement des Verbands der Hochschullehrer für Betriebswirtschaft e.V. 2014, 25. September 2014, Ilmenau
Degel, E. J.; Walther, G. (2014): Strategische Netzwekplanung unter Berücksichtigung von Rohstoffkritikalitäten am Beispiel des Recyclings von Photovoltaik-Modulen. Herbsttagung der wissenschaftlichen Kommission Nachhaltigkeitsmanagement des Verbands der Hochschullehrer für Betriebswirtschaft e.V. 2014, 25. September 2014, Ilmenau
Degel, E. J.; Walther, G. (2014): Strategic Network Planning of Recycling of Photovoltaic Modules. International Annual Conference of the German OR Society 2014, 02. September - 05. September 2014, Aachen, Vortrag am 02. September 2014
Hombach, L. E.; Walther, G. (2014): Incorporation of LCA within Multi-Objective Optimization for the case of biofuel. Applied Sustainability Series Talk, 10. July 2014, Vancouver
Hombach, L. E.; Walther, G. (2014): Evaluation of CO2 abatement measures for (bio-) fuel production under a economical and ecological perspective, University of British Columbia
Walther, G. (2014): Analysis of the legal boundary conditions to regulate the biofuels market. 2nd TMFB International Conference, 16. June - 18. June 2014, Aachen, Vortrag am 16. June 2014
Bock, M.; Walther, G. (2014): Analyse von Lastmanagementinstrumenten für die Energienachfrage im Haushaltssektor mittels agentenbasierter Simulation. Workshop der Energy , Mobility and Environment (EME) Research Area, 02. April 2014, Aachen
Burgard, E.; Hombach, L. E.; Walther, G. (2014): Modelbasierte Entscheidungsunterstützung für Investoren und Gesetzgeber – am Beispiel der Produktion von Biokraftstoffen und des Recyclings von Photovoltaikanlagen. Workshop der Energy, Mobility and Environment (EME) Research Area, 02. April 2014, Aachen
Burgard, E.; Walther, G. (2014): Strategische Netzwerkplanung unter Berücksichtigung von Ressourcenverfügbarkeitsrisiken am Beispiel des Recyclings von Photovoltaik-Modulen. Tagung der GOR-AG: OR im Umweltschutz 2014, 20. February - 21. February 2014, Heidelberg, Vortrag am 20. February 2014
Hombach, L. E.; Walther, G. (2014): Analyse der rechtlichen Rahmenbedingungen zur Regulierung des Biokraftstoffmarktes. Tagung der GOR-AG: OR im Umweltschutz 2014, 20. February - 21. February 2014, Heidelberg, Vortrag am 21. February 2014
Meyer, J.C.; Hobson, P.A.; Fröhling, M.; Schultmann, F. (2013): A Combinatorial Heuristic and Nested Monte Carlo Simulation Approach for Biofuel Supply Chain Design. 55th Canadian Operational Research Society (CORS) Annual Conference, 27. May - 29. May 2013, Vancouver, Vortrag am 27. May 2013
Hombach, L. E.; Walther, G. (2013): Evaluation of CO2 abatement measures for (bio-) fuel production. Logistikmanagement 2013, 10. September - 13. September 2013, Universität Bremen, Vortrag am 11. September 2013
Hombach, L. E.; Walther, G. (2013): Simulation based evaluation of strategies for the market diffusion of alternative drivetrain technologies. International Conference on Operations Research 2013, 03. September - 06. September 2013, Erasmus School of Economics, Rotterdam, Vortrag am 04. September 2013
Hombach, L. E.; Walther, G. (2013): Decision support for legal regulation of production and market introduction of biofuels. EURO-INFORMS 26th European Conference on Operational Research 2013, 01. July - 05. July 2013, Rome, Vortrag am 01. July 2013
Bock, M.; Walther, G. (2013): Agentenbasierte Simulation zur Abbildung der Energienachfrage im Haushaltssektor. Tagung der GOR-AG: OR im Umweltschutz 2013, 07. March - 08. March 2013, Karlsruhe, Vortrag am 08. March 2013
Walther, G.; Spengler, T. S.; Schatka, A.; Hombach, L. E. (2012): Robust design of production networks for second generation synthetic bio-fuel. EURO 25th European Conference on Operational Research 2012, 08. July - 11. July 2012, Vilnius, Vortrag am 10. July 2012
Burgard, E.; Walther, G. (2012): Multicriteria decision support for the selection of resource efficiency measures. International Annual Conference of the German OR Society 2012, 04. September - 07. September 2012, Hannover, Vortrag am 05. September 2012
Bock, M.; Walther, G. (2012): Balancing of Energy Supply and Residential Demand. International Annual Conference of the German OR Society 2012, 04. September - 07. September 2012, Hannover, Vortrag am 06. September 2012
Hombach, L. E.; Walther, G. (2012): Planning a network for biodiesel production of the 2nd generation under ecological and economical aspects. International Annual Conference of the German OR Society 2012, 04. September - 07. September 2012, Hannover, Vortrag am 05. September 2012
Bock, M.; Walther, G. (2012): Verbrauchsseitiger Ausgleich von Energienachfrage und -angebot. GOR Arbeitsgruppensitzung MUC12, 23. February - 24. February 2012, München, Vortrag am 24. February 2012
Walther, G. (2008): Bewertung von Emissionsminderungsmaßnahmen, Präsentation zum Forschungsprojekt, Volkswagen AG
Walther, G. (2008): Regulatory Impact Assessment for the Transportation Sector - Case Study Germany. Plenary Presentation at the Annual International Conference of the System Dynamics Society, 20. July - 24. July 2008, Athens
Walther, G. (2008): Coordination in Recycling Networks. Invited Presentation at INFORMS Annual Conference, 11. October - 15. October 2008, Washington DC
Spengler, T. S.; Walther, G. (2007): Koordination von Recyclingnetzwerken. Herbsttagung der Wissenschaftlichen Kommission Umweltwirtschaft im Verband der Hochschullehrer für Betriebswirtschaft, 03. October - 05. October 2007, Vienna
Walther, G. (2006): Multikriterielle Bewertung von Reverse Logistics Netzwerken. Nachwuchstreffen der WK Produktionswirtschaft im Verband der Hochschullehrer für Betriebswirtschaft, 02. March 2006, Mainz
Walther, G. (2006): Sustainable Supply Networks. Seminar of the ERASMUS Research Institute of Management (ERIM), 12. September 2006, Rotterdam
Walther, G.; Schmid, E.; Kramer, S.; Spengler, T. S. (2005): Planning and Evaluation of Sustainable Reverse Logistics Systems. International Scientific Annual Conference Operations Research 2005, 07. September - 09. September 2005, Bremen
Walther, G. (2005): Schließung von Materialkreisläufen der Elektronikindustrie in Stoffstrom-Netzwerken. Vortrag im Rahmen der Sitzung des Arbeitsausschusses E-Schrott, Verein Deutscher Metallhändler e.V. (VDM) - Bundesverband des NE-Metallgroßhandels und der NE-Metallrecyclingwirtschaft, 07. March 2005, Goslar
Walther, G. (2005): Multi-criteria Based Evaluation of Reverse Logistics Systems. Third International Conference of the International Society for Industrial Ecology, 12. June - 15. June 2005, Stockholm
Spengler, T. S.; Walther, G. (2005): Planning and Evaluation of Sustainable Reverse Logistics Systems. 5thWorkshop on Business Aspects of Closed-Loop Supply Chains (CLSC), 09. October - 11. October 2005, Nashville, Tennessee
Spengler, T. S.; Walther, G. (2005): Impact of WEEE-directive on reverse logistics in Germany. 3rd US-European Workshop on Logistics and Supply Chain Management, 12. October - 13. October 2005, Berkeley
Walther, G. (2005): Schließung von Materialkreisläufen der Elektronikindustrie in Closed-Loop Supply Chains und Reverse Logistics Netzwerken. Vortrag im Rahmen der Vorlesung (Einladung durch Prof. Dr. Harald Dyckhoff), 13. July 2005, Aachen
Walther, G. (2004): Betriebliche Umsetzung des Emissionshandels, Bei der Salzgitter Flachstahl GmbH
Walther, G. (2004): Strategische, taktische und operative Planungsaufgaben im Rahmen des Emissionshandels, Bei der Salzgitter Flachstahl GmbH
Walther, G. (2004): Wertschöpfungsnetzwerke zur Umsetzung der WEEE-Richtlinie durch KMU - Handlungsempfehlungen für umweltpolitische Entscheidungsträger. Herbsttagung der wissenschaftlichen Kommission Umweltwirtschaft im Verband der Hochschullehrer für Betriebswirtschaft, 07. October - 08. October 2004, Dresden
Walther, G. (2003): Stoffstrom-Netzwerke zur ökonomisch effizienten Umsetzung der EU-Richtlinie über Elektro- und Elektronik-Altgeräte (WEEE). Interuniversitärer Doktorandenworkshop, 13. March - 15. March 2003, Berlin
Walther, G. (2003): Optimisation of disassembly networks with fulfilment of WEEE recycling targets. EURO/INFORMS Joint International Meeting, 06. June - 10. June 2003, Istanbul
Walther, G. (2002): Gestaltung und Lenkung von Stoffstrom-Netzwerken zum Recycling komplexer Verbundprodukte - am Beispiel Brauner Ware. Workshop, 15. May - 16. May 2002, Braunschweig
Walther, G. (2001): Gestaltung und Lenkung von Stoffstrom-Netzwerken zum Recycling komplexer Verbundprodukte - Arbeitsbericht. Kolloquium des Instituts für Werkzeugmaschinen und Fertigungstechnik, 06. July 2001, Braunschweig
Walther, G. (2001): Gestaltung und Lenkung von Stoffstrom-Netzwerken zum Recycling komplexer Verbundprodukte - am Beispiel Unterhaltungselektronik. Interuniversitärer Doktorandenworkshop, 17. May - 19. May 2001, Clausthal-Zellerfeld
Walther, G. (2000): Stoff- und Energiestrommanagement der Pabel Moewig Druck KG - Präsentation der Projektergebnisse, Pabel Moewig Druck KG
Walther, G. (2000): Stoff- und Energieströme eines Fertigungsbetriebes am Beispiel eines mittelständischen Unternehmens. 5. Umberto Anwender-Workshop, 26. September - 27. September 2000, Heidelberg
Projekt- und Forschungsberichte (Auswahl)
Spengler, T. S.; Kieckhäfer, K.; Herrmann, Ch.; Mennenga, M.; Walther, G.; Hombach, L. E. (2014): Schlussbericht für das Projekt „SUSTEH – Internationale Kooperation zu Nachhaltigen Antriebstechnologien für Europa, China und USA“ im Rahmen der bilateralen Zusammenarbeit in Bildung und Forschung zwischen Deutschland und den USA In: Endbericht zum durch das Internationale Büro des BMBF geförderten Projekt SUSTECH (unveröffentlicht)
Spengler, T. S.; Kieckhäfer, K.; Wachter, K.; Herrmann, Ch.; Mennenga, M.; Sieg, G.; Kratzsch, U.; Dietrich, A.-M.; Walther, G.; Hombach, L. E.; Heise, G.; Jorissen, J. (2013): Schlussbericht für das Verbundvorhaben „STROM - Strategische Optionen der Automobilindustrie zur Maßnahmenallokation für die Migration nachhaltiger Antriebstechnologien in etablierten und aufstrebenden Märkten “ In: Endbericht zum BMBF-Projekt STROM
Walther, G.; Spengler, T. S. (2004): Operativ-taktische sowie strategische Aspekte des Handels mit Emissionszertifikaten für die Salzgitter Flachstahl GmbH In: Projektbericht für die Salzgitter Flachstahl GmbH, November 2004 (unveröffentlicht)
Walther, G.; Spengler, T. S. (2004): Leitfaden für die betriebliche Umsetzung des Emissionshandels in der Salzgitter Flachstahl GmbH In: Projektbericht im Auftrag der Salzgitter Flachstahl GmbH, Januar 2005 (unveröffentlicht)
Queiruga, D; González-Benito, J.; Walther, G.; Spengler, T. S. (2004): Propuesta de un método para la localización de empresas de reciclaje de RAEE en España In: Documentos de Trabajo
Frings, E.; Heistermann, M.; Hitzler, L.; Rüdel, O.; Walther, G. (2003): Zukunftsfähiges Wirtschaften - Ein Leitfaden zur Nachhaltigkeitsberichterstattung von Unternehmen, i.A. des Ministeriums für Umwelt und Verkehr Baden-Württemberg
Hesselbach, J.; Spengler, T. S.; Ohlendorf, M.; Walther, G. (2002): Gestaltung und Lenkung von Stoffstrom-Netzwerken zum Recycling komplexer Verbundprodukte - am Beispiel Brauner Ware In: Endbericht zum DFG-Forschungsvorhaben HE 1890/16-1/ SP 419/1
Walther, G. (2001): Ist-Situation und Schwachstellenanalyse der Behandlung von Altgeräten der Unterhaltungselektronik unter besonderer Berücksichtigung der Situation in Niedersachsen In: Arbeitsbericht zum DFG-Forschungsvorhaben HE 1890/16-1/ SP 419/1, Dezember 2001 (unveröffentlicht)
Frings, E.; Walther, G. (2001): Vom Umwelt- zum Nachhaltigkeitsbericht. Zwischenbericht In: Vorhaben im Rahmen des Förderprogrammes BWPlus des Landes Baden-Württemberg, Heidelberg, März 2001 (unveröffentlicht)
Frings, E.; Walther, G.; Schorb, A.; Schmidt, M. (2000): Erstellung eines betrieblichen Energie- und Stoffstrommanagements für die Firma Pabel Moewig Verlag KG - VPM in Rastatt In: Endbericht i. Auftrag der Landesanstalt für Umweltschutz Baden Württemberg, Heidelberg, März 2000 (unveröffentlicht)
Buchkapitel
Dyckhoff, H. (2021): Das allgegenwärtige Phänomen der Kuppelproduktion und die Ignoranz des Mainstreams für nachhaltiges Wirtschaften In: W. Matiaske, D. Sadowski (Hrsg.), Ideengeschichte der Betriebswirtschaftslehre II. Wiesbaden, Springer Gabler
Merchan, A.L. (2021): Importance of the Electricity Mix for Electric Vehicles to Help Obtain the SDGs In: Leal Filho W., Azul A.M., Brandli L., Lange Salvia A., Wall T. (eds): Industry, Innovation and Infrastructure. Encyclopedia of the UN Sustainable Development Goals. Springer, Cham. DOI: https://doi.org/10.1007/978-3-319-71059-4_146-1
Sauer, P.; Seuring, S.; Sommer, V.; Walther, G. (2018): Nachhaltiges Supply Chain Management In: Handbuch Produktions- und Logistikmanagement in Wertschöpfungsnetzwerken, Volume 1, Pages 976 - 993. DOI: 10.1515/9783110473803