@article{PuhlmannUnruhScholzetal.2013,
  author    = {Guido Puhlmann and Michael Unruh and Mathias Scholz and Klaus Henle},
  title     = {Vorwort},
  journal   = {Naturschutz im Land Sachsen-Anhalt},
  volume    = {46},
  number    = {Sonderheft},
  pages     = {4 -- 5},
  year      = {2013},
}