@article{HetzelWiggen2015,
  author    = {Ingo Hetzel and Simon Wiggen},
  title     = {Exkursion: Bochum-Bergen, NSG Tippelsberg/Berger M{\"u}hle},
  journal   = {Jahrbuch des Bochumer Botanischen Vereins},
  volume    = {6},
  pages     = {68 -- 68},
  year      = {2015},
}