@misc{Dubiel_Eugeniusz_Natural_1977,
 author={Dubiel, Eugeniusz},
 volume={33},
 editor={Research Centre for the Protection of Nature of the Polish Academy of Sciences},
 number={5-6},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Let's protect Our Indigenous Nature},
 address={Warszawa},
 address={Kraków},
 howpublished={online},
 year={1977},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={Natural rarities in the inanimate nature reserve of Luboń Wielki},
 type={Text},
 URL={http://www.rcin.org.pl/Content/83699/PDF/KR038_103519_r1977-t33-no5-6_ChPO-Dubiel-28-36.pdf},
 keywords={inanimate nature conservation, geology, Luboń Wielki - nature reserve},
}