@misc{_Protection_1992,
 volume={R. 50, część I},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Protection of Nature},
 howpublished={online},
 year={1992},
 publisher={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 language={pol ; eng},
 title={Protection of Nature Ann. 50 p. I (1992)},
 type={Text},
}