@misc{Kornaś_Jan_Timely_1947,
 author={Kornaś, Jan},
 volume={3},
 number={3/4},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Let's protect Our Indigenous Nature},
 address={Kraków},
 howpublished={online},
 year={1947},
 publisher={PROP},
 language={pol},
 title={Timely postulates of nature protection in the Kraków Jura},
 type={Text},
 URL={http://rcin.org.pl/iop/Content/79063/PDF/KR038_98279_r1947-t3-no3-4_ChPO-Kornas-14-19.pdf},
 keywords={Cracow Jurassic Region},
}