@misc{Frahm2011,
  author    = {Jan-Peter Frahm},
  title     = {Campylopus atrovirens De Not. var. cucullatifolius J.-P. Frahm new to Europe},
  booktitle = {100},
  series    = {Archive for Bryology},
  number    = {100},
  type      = {periodicalpart},
  pages     = {4},
  year        = {2011},
}