@misc{Witkowski_Zbigniew_Contribution_1997,
 author={Witkowski, Zbigniew},
 volume={53},
 number={2},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Kraków},
 journal={Let's protect Our Indigenous Nature},
 howpublished={online},
 year={1997},
 publisher={Institute of Nature Conservation of the Polish Academy of Sciences},
 language={pol},
 title={Contribution of Polish scientists to the world research and development of nature conservation},
 type={Text},
 URL={http://rcin.org.pl/Content/75741/PDF/KR038_91874_r1997-t53-no2_ChPO-Witkowski-5-14.pdf},
 keywords={nature conservation},
}