@article{JessenBujnochZenneretal.2011,
  author    = {Stefan Jessen and Walter Bujnoch and G{\"u}nther Zenner and Christoph Stark},
  title     = {Dryopteris lacunosa - eine neue Art des Dryopteris-affinis-Aggregats (Dryopteridaceae, Pteridophyta)},
  journal   = {Kochia},
  volume    = {5},
  pages     = {9 -- 31},
  year      = {2011},
}