@misc{Profus_Piotr_Changes_1993,
 author={Profus, Piotr},
 volume={49},
 number={3},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1993},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 type={Text},
 title={Changes in the breeding population of the White Stork in Europe and its endangerment},
 URL={http://rcin.org.pl/Content/87791/PDF/KR038_102993_r1993-t49-no3_ChPO-Profus-51-66.pdf},
 keywords={white stork, Ciconia ciconia},
}