@misc{_Nature_1998,
 volume={R. 55},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Nature Conservation},
 howpublished={online},
 year={1998},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 type={Text},
 title={Nature Conservation Ann. 55 (1998)},
}