@article{DuettmannEhrnsbergerBergmann2013,
  author    = {Heinz D{\"u}ttmann and Rainer Ehrnsberger and Hans-Heiner Bergmann},
  title     = {Vorwort [zu den Symposium Proceedings "Ecology and conservation of meadow birds in Central Europe"]},
  journal   = {Osnabr{\"u}cker naturwissenschaftliche Mitteilungen : Ver{\"o}ffentlichungen des Naturwissenschaftlichen Vereins Osnabr{\"u}ck},
  volume    = {32},
  pages     = {88 -- 89},
  year      = {2013},
}