@article{ButtlerHand2007,
  author    = {Karl Peter Buttler and Ralf Hand},
  title     = {Beitr{\"a}ge zur Fortschreibung der Florenliste Deutschlands (Pteridophyta, Spermatophyta)},
  journal   = {Kochia},
  volume    = {2},
  pages     = {43 -- 49},
  year      = {2007},
}