@article{Westk{\"a}mperNiemannDauensteiner2001,
  author    = {Westk{\"a}mper, Engelbert and Niemann, J{\"o}rg and Dauensteiner, A.},
  title     = {Economic and ecological aspects in product life cycle evaluation},
  journal   = {Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture},
  volume    = {215},
  number    = {5},
  publisher = {sage journals},
  issn      = {2041-2975},
  doi       = {10.1243/0954405011518601},
  institution = {Fachbereich - Maschinenbau und Verfahrenstechnik},
  pages     = {673 -- 681},
  year      = {2001},
  language  = {en}
}