@misc{Frahm2006,
  author    = {Jan-Peter Frahm},
  title     = {Moos {\"u}berwintert im Eis},
  booktitle = {13},
  series    = {Archive for Bryology},
  number    = {013},
  type      = {periodicalpart},
  pages     = {1},
  year        = {2006},
}