@misc{_Protection_1990, volume={R. 47}, editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences}, copyright={Creative Commons Attribution BY 3.0 PL license}, address={Warszawa}, address={Kraków}, journal={Protection of Nature}, howpublished={online}, year={1990}, publisher={Państwowe Wydawnictwo Naukowe}, language={pol ; eng}, title={Protection of Nature Ann. 47 (1990)}, type={Text}, }