@article{VanaMueller2003,
  author    = {Jiri V{\´a}na and Frank M{\"u}ller},
  title     = {Cephaloziella biokoensis sp. nov. (Marchantiopsida, Cephaloziellaceae), from the island of Bioko (Equatorial Guinea)},
  journal   = {Tropical bryology},
  number    = {24},
  pages     = {1 -- 4},
  year      = {2003},
}