@article{KisonUllrichVieth2014,
  author    = {Hans-Ulrich Kison and Hans Ullrich and Petra Vieth},
  title     = {Flechten},
  journal   = {Naturschutz im Land Sachsen-Anhalt},
  volume    = {31},
  number    = {Sonderheft},
  pages     = {24 -- 25},
  year      = {2014},
}