author  = "M. Kasprzak and A. Ponińska and L. Jerzak and E. Kulczykowska",
  title     = "Day-night variations in hematological parameters in wild juvenile White Storks Ciconia ciconia",
  pages     = "339--342",
  year      = "2006",
  booktitle = "The White Stork in Poland : studies in biology, ecology and conservation, ISBN: 8360247358",
  editor    = "ed. P. Tryjanowski, T. H. Sparks, L. Jerzak",
  publisher = "Bogucki Wydaw. Naukowe",
  address   = "Poznań",