@misc{Kalemba_Andrzej_Changes_2002,
 author={Kalemba, Andrzej},
 volume={58},
 number={3},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={2002},
 publisher={Institute of Nature Conservation Polish Academy of Sciences},
 language={pol},
 type={Text},
 title={Changes in the number of nature reserves and national parks in 2001},
 URL={http://rcin.org.pl/Content/71460/PDF/KR038_89333_r2002-t58-no3_ChPO-Kalemba-95-102.pdf},
 keywords={national parks, nature reserves},
}