@misc{Michalik_Stefan_The_2000,
 author={Michalik, Stefan and Michalik, Ryszard},
 volume={56},
 number={6},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={2000},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 type={Text},
 title={The population dynamics and active protection of Cypripedium calceolus L. in the Michałowiec nature reserve},
 URL={http://www.rcin.org.pl/Content/113247/PDF/KR038_110225_r2000-t56-no6_ChPO-Michalik-13-28.pdf},
 keywords={Cypripedium calceolus, Michałowiec},
}