2022

• Material and energy flow analysis for environmental and economic impact assessment of industrial recycling routes for lithium-ion traction batteries
  Blömeke, Steffen; Scheller, Christian; Cerdas, Felipe; Thies, Christian; Hachenberger, Rolf; Gonter, Mark; Herrmann, Christoph; Spengler, Thomas
  Journal of Cleaner Production 377: 134344 (2022-12-01)
  Verlags DOI
• Comparison of conventional and electric passenger aircraft for short-haul flights : a life cycle sustainability assessment
  Barke, Alexander; Thies, Christian; Pinheiro Melo, Sofia; Cerdas, Felipe; Herrmann, Christoph; Spengler, Thomas Stefan
  Procedia CIRP 105: 464-469 (2022)
  Open Access | Verlags DOI
• Exploring recycling options in battery supply chains : a life cycle sustainability assessment
  Popien, Jan Linus; Thies, Christian; Spengler, Thomas Stefan
  Procedia CIRP 105: 434-439 (2022)
  Open Access | Verlags DOI
• Life Cycle Engineering Modelling Framework for batteries powering electric aircrafts : the contribution of eVTOLs towards a more sustainable urban mobility
  Pinheiro Melo, Sofia; Cerdas, Felipe; Barke, Alexander; Thies, Christian; Spengler, Thomas Stefan; Herrmann, Christoph
  Procedia CIRP 105 : 368-373 (2022)
  Open Access | Verlags DOI
• Are sustainable aviation fuels a viable option for decarbonizing air transport in Europe? : An environmental and economic sustainability assessment
  Barke, Alexander; Bley, Timo; Thies, Christian; Weckenborg, Christian; Spengler, Thomas Stefan
  Applied Sciences 12 (2): 597 (2022)
  Open Access | Verlags DOI
• Project portfolio planning under CO2 fleet emission restrictions in the automotive industry
  Thies, Christian; Hüls, Christoph; Kieckhäfer, Karsten; Wansart, Jörg; Spengler, Thomas Stefan
  Journal of Industrial Ecology 26 (3): 937-951 (2022-06-01)
  Open Access | Verlags DOI
• Harmonizing ergonomics and economics of assembly lines using collaborative robots and exoskeletons
  Weckenborg, Christian; Thies, Christian; Spengler, Thomas Stefan
  Journal of Manufacturing Systems 62: 681-702 (2022-01-01)
  Verlags DOI

2021

• Activity analysis based modeling of global supply chains for sustainability assessment
  Thies, Christian; Kieckhäfer, Karsten; Spengler, Thomas Stefan
  Journal of Business Economics 91 (2): 215-252 (2021-03)
  Open Access | Verlags DOI
• Exploring the three dimensions of sustainability related to clay cups
  Sangwan, Kuldip Singh; Sodhi, Manbir S.; Spengler, Thomas Stefan; Thies, Christian
  Procedia CIRP 98: 139-144 (2021)
  Open Access | Verlags DOI
• Life cycle sustainability assessment of potential battery systems for electric aircraft
  Barke, Alexander; Thies, Christian; Popien, Jan Linus; Pinheiro Melo, Sofia; Cerdas, Felipe; Herrmann, Christoph; Spengler, Thomas Stefan
  Procedia CIRP 98: 660-665 (2021)
  Open Access | Verlags DOI
• Towards sustainable supply chains for electric mobility
  Thies, Christian
  Springer Gabler 978-3-658-35449-7: 45-61 (2021)
  Verlags DOI

2020

• Limiting CO2 fleet emissions in the automotive industry – a portfolio planning approach
  Hüls, Christoph; Thies, Christian; Kieckhäfer, Karsten; Spengler, Thomas Stefan
  International Journal of Automotive Technology and Management 20 (4): 349-368 (2020)
  Verlags DOI
• Sustainability assessment of products with global supply chains - Methodological contributions and applications to electric mobility
  Thies, Christian
  Technischen Universität Carolo-Wilhelmina zu Braunschweig (2020)
  Verlags DOI
• Sustainability assessment and engineering of emerging aircraft technologies - challenges, methods and tools
  Pinheiro Melo, Sofia; Barke, Alexander; Cerdas, Felipe; Thies, Christian; Mennenga, Mark Stephan; Spengler, Thomas Stefan; Herrmann, Christoph
  Sustainability (Switzerland) 12 (14): 5663 (2020-07)
  Verlags DOI
• Life cycle engineering of future aircraft systems : the case of eVTOL vehicles
  Pinheiro Melo, Sofia; Cerdas, Felipe; Barke, Alexander; Thies, Christian; Spengler, Thomas Stefan; Herrmann, Christoph
  Procedia CIRP 90: 297-302 (2020)
  Open Access | Verlags DOI
• Socio-economic life cycle assessment of future aircraft systems
  Barke, Alexander; Thies, Christian; Pinheiro Melo, Sofia; Cerdas, Felipe; Herrmann, Christoph; Spengler, Thomas Stefan
  Procedia CIRP 90: 262-267 (2020)
  Open Access | Verlags DOI
• Strategische Planung der Antriebsportfoliotransformation von Automobilherstellern
  Hüls, Christoph; Thies, Christian; Spengler, Thomas Stefan; Kieckhäfer, Karsten
  Springer Gabler 978-3-658-29745-9: 81-93 (2020)
  Verlags DOI

2019

• Assessment of social sustainability hotspots in the supply chain of lithium-ion batteries
  Thies, Christian; Kieckhäfer, Karsten; Spengler, Thomas Stefan; Sodhi, Manbir S.
  Procedia CIRP 80: 292-297 (2019)
  Open Access | Verlags DOI
• Operations research for sustainability assessment of products: a review
  Thies, Christian; Kieckhäfer, Karsten; Spengler, Thomas Stefan; Sodhi, Manbir S.
  European Journal of Operational Research 274 (1): 1-21 (2019-04-01)
  Verlags DOI

2018

• Spatially differentiated sustainability assessment of products
  Thies, Christian; Kieckhäfer, Karsten; Spengler, Thomas Stefan; Sodhi, Manbir S.
  Springer 978-3-319-92237-9: 155-163 (2018)
  Verlags DOI
• Spatially differentiated sustainability assessment for the design of global supply chains
  Thies, Christian; Kieckhäfer, Karsten; Spengler, Thomas Stefan; Sodhi, Manbir S.
  Procedia CIRP 69: 435-440 (2018)
  Open Access | Verlags DOI
• Economic assessment of the LithoRec process
  Thies, Christian; Kieckhäfer, Karsten; Hoyer, Claas; Spengler, Thomas Stefan
  In: Kwade, A., Diekmann, J. (eds) Recycling of Lithium-Ion Batteries. Sustainable Production, Life Cycle Engineering and Management: 253-266 (2018)
  Verlags DOI

2016

• Market introduction strategies for alternative powertrains in long-range passenger cars under competition
  Thies, Christian; Kieckhäfer, Karsten; Spengler, Thomas Stefan
  Transportation Research Part D: Transport and Environment 45: 4-27 (2016)
  Verlags DOI