@misc{OPUS4-31100,
  title     = {Die Vogelwarte : Band 43, Heft 1},
  booktitle = {Vogelwarte : Zeitschrift f{\"u}r Vogelkunde},
  volume    = {43},
  number    = {1},
  type      = {periodicalpart},
  pages     = {1 -- 60},
  year        = {2005},
}