@article{Mueller2014,
  author    = {Helmut M{\"u}ller},
  title     = {Der Naturpark und seine Entwicklungsgeschichte},
  journal   = {Naturschutz im Land Sachsen-Anhalt},
  volume    = {30},
  number    = {Sonderheft},
  pages     = {5 -- 8},
  year      = {2014},
}