@misc{Frahm2007,
  author    = {Jan-Peter Frahm},
  title     = {Eine Umweltg{\"u}tekarte des Rheinlandes basierend auf epiphytischen Moosen},
  booktitle = {22},
  series    = {Archive for Bryology},
  number    = {022},
  type      = {periodicalpart},
  pages     = {3},
  year        = {2007},
}