@misc{Klasa_Anna_On_1998,
 author={Klasa, Anna},
 volume={54},
 number={6},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1998},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 type={Text},
 title={On the protection of amphibians in the Ojców National Park},
 URL={http://www.rcin.org.pl/Content/69748/PDF/KR038_88105_r1998-t54-no6_ChPO-Klasa-80-85.pdf},
 keywords={amphibians, Ojców National Park, Amphibia},
}