@misc{OPUS4-4616,
  title     = {Wuppertal Bulletin zu Instrumenten des Klima- und Umweltschutzes : Jg. 12},
  publisher = {Wuppertal Institut f{\"u}r Klima, Umwelt, Energie},
  address   = {Wuppertal},
  issn      = {1618-3959},
  pages     = {38},
  year      = {2009},
  language  = {de}
}