@misc{Profus_Piotr_Studia_2006, author={Profus, Piotr}, volume={Nr 50}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Kraków}, journal={Studia Naturae}, howpublished={online}, year={2006}, publisher={Institute of Nature Conservation of the Polish Academy of Sciences}, language={pol}, type={Text}, title={Studia Naturae No. 50 (2006)}, keywords={white stork - Poland, Ciconia ciconia}, }