@article{Mueller1996,
  author    = {Frank M{\"u}ller},
  title     = {Beitrag zur Moosflora der Insel Bioko (= Fernando Poo), {\"A}quatorial-Guinea},
  journal   = {Tropical bryology},
  number    = {12},
  pages     = {75 -- 96},
  year      = {1996},
}