@article{Gregor2012,
  author    = {Thomas Gregor},
  title     = {Typisierungen in der Potentilla-collina-Gruppe (Potentilla subgrex Collinae TH. WOLF). - 1. Nachtrag},
  journal   = {Kochia},
  volume    = {6},
  pages     = {119 -- 121},
  year      = {2012},
}