@misc{Chmiel_Julian_The_1986,
 author={Chmiel, Julian},
 volume={42},
 editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 number={6},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 journal={Let's protect Our Indigenous Nature},
 address={Warszawa},
 address={Kraków},
 howpublished={online},
 year={1986},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 title={The locality of the black birch, Betula humilis, at Brzezowiec near Trzemeszno},
 type={Text},
 URL={http://www.rcin.org.pl/Content/83824/PDF/KR038_99882_r1986-t42-no6_ChPO-Chmiel-61-65.pdf},
 keywords={black birch, Betula humilis},
}