@misc{Urban_Jan_Unique_1999,
 author={Urban, Jan},
 volume={55},
 number={1},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1999},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 type={Text},
 title={Unique tors in the "Skalisty Jar Libberta" reserve in Pojezierze Myśliborskie (Myślibórz Lakeland)},
 URL={http://www.rcin.org.pl/Content/73477/PDF/KR038_95827_r1999-t55-no1_ChPO-Urban-84-90.pdf},
 keywords={inanimate nature conservation, tors, Skalisty Jar Libberta, Pojezierze Myśliborskie},
}