@article{Gregor2003,
  author    = {Thomas Gregor},
  title     = {Rote Liste der Armleuchteralgen (Characeae) Hessens : erste Fassung},
  journal   = {Botanik und Naturschutz in Hessen},
  volume    = {16},
  pages     = {31 -- 37},
  year      = {2003},
}