@techreport{OrbachLiedtke1998,
  type      = {Working Paper},
  author    = {Orbach, Thomas and Liedtke, Christa},
  title     = {Eco-management accounting in Germany : concepts and practical implementation ; a study of operational and material flows analysis, particulary as it is practised in Germany and how it might be used as a part of management accounting},
  series    = {Wuppertal Papers},
  volume    = {88},
  institution = {Wuppertal Institut f{\"u}r Klima, Umwelt, Energie},
  address   = {Wuppertal},
  url       = {https://nbn-resolving.org/urn:nbn:de:bsz:wup4-opus-7756},
  pages     = {24},
  year      = {1998},
  language  = {en}
}