@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://rcin.org.pl/iop/Content/69748/PDF/KR038_88105_r1998-t54-no6_ChPO-Klasa-80-85.pdf}, keywords={amphibians, Ojców National Park, Amphibia}, }