@misc{OPUS4-27045,
  title     = {Die Vogelwarte : Band 45},
  booktitle = {Vogelwarte : Zeitschrift f{\"u}r Vogelkunde},
  volume    = {45},
  number    = {1-4},
  issn      = {0049-6650},
  type      = {periodicalpart},
  year        = {2007},
}