@misc{Frahm2010,
  author    = {Jan-Peter Frahm},
  title     = {Hyophila involuta am Vierwaldst{\"a}ttersee (Schweiz)},
  booktitle = {71},
  series    = {Archive for Bryology},
  number    = {071},
  type      = {periodicalpart},
  pages     = {4},
  year        = {2010},
}