@misc{SchnellStapper2009,
  author    = {Sinje Schnell and Norbert J. Stapper},
  title     = {Eine einfache Methode zur Bioindikation der Umweltbelastung in einer Großstadt mit epiphytischen Flechten},
  booktitle = {Archive for lichenology ; 3},
  issn      = {1868-4173},
  series    = {Archive for lichenology},
  number    = {3},
  type      = {workingpaper},
  pages     = {8},
  year        = {2009},
}