@misc{Ostański_Mariusz_The_1997,
 author={Ostański, Mariusz},
 volume={53},
 number={5},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1997},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 type={Text},
 title={The Lesser Spotted Eagle Aquila pomarina in the Bieszczady Zachodnie Mountains in 1985-1996},
 URL={http://rcin.org.pl/Content/198108/PDF/KR038_193901_r1997-t53-no6_ChPO-Ostanski-89-92.pdf},
 keywords={Lesser Spotted Eagle, Aquila pomarina},
}