@article{Doerken2012,
  author    = {Veit Martin D{\"o}rken},
  title     = {Marchantia polymorpha : Brunnenlebermoos (Marchantiaceae)},
  journal   = {Jahrbuch des Bochumer Botanischen Vereins},
  volume    = {3},
  pages     = {236 -- 245},
  year      = {2012},
}