@misc{Oesau2006,
  author    = {Albert Oesau},
  title     = {Phascum vlassovii LAZ. (Pottiaceae, Bryophytina) in Hessen und Rheinland-Pfalz, neu f{\"u}r Mitteleuropa},
  booktitle = {18},
  series    = {Archive for Bryology},
  number    = {018},
  type      = {periodicalpart},
  pages     = {6},
  year        = {2006},
}