@article{Luhmann2000,
  author    = {Luhmann, Hans-Jochen},
  title     = {UNEP: Global environmental outlook 2000},
  journal   = {Entwicklung und Zusammenarbeit},
  volume    = {41},
  number    = {3},
  pages     = {91},
  year      = {2000},
  language  = {de}
}