@misc{_Protection_1997,
 volume={R. 54},
 editor={Institute of Nature Conservation of the Polish Academy of Sciences},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Protection of Nature},
 howpublished={online},
 year={1997},
 language={pol ; eng},
 title={Protection of Nature Ann. 54 (1997)},
 type={Text},
}