@article{SillUllrich2008,
  author    = {Konrad Sill and Bruno Ullrich},
  title     = {Reproduktive Leistung eines {\"u}ber zw{\"o}lf Jahre br{\"u}tend kontrollierten Steinkauzweibchens Athene noctua},
  journal   = {Vogelwarte : Zeitschrift f{\"u}r Vogelkunde},
  volume    = {43},
  number    = {1},
  pages     = {43 -- 45},
  year      = {2008},
}