@misc{Endler_Zbigniew_On_1977,
 author={Endler, Zbigniew},
 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={On the need to establish a forest reserve in the Góry Piłackie hills},
 type={Text},
 URL={http://rcin.org.pl/iop/Content/80877/PDF/KR038_103522_r1977-t33-no5-6_ChPO-Endler-101-103.pdf},
 keywords={Pojezierze Ełckie, Góry Piłackie},
}