@misc{Chmielewski_Tadeusz_Jan_(1950–_)_Delimitation_1990,
 author={Chmielewski, Tadeusz Jan (1950– )},
 volume={46},
 editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 number={4-5},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Let's protect Our Indigenous Nature},
 address={Warszawa},
 address={Kraków},
 howpublished={online},
 year={1990},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={Delimitation of the systems of protected areas according to the criteria of landscape ecology upon the example of Polesie Lubelskie},
 type={Text},
 URL={http://www.rcin.org.pl/Content/84546/PDF/KR038_102690_r1990-t46-no4-5_ChPO-Chmielewski-20-29.pdf},
 keywords={protected area system, Polesie Lubelskie},
}