@misc{Michalik_Stefan_Plant_1990,
 author={Michalik, Stefan},
 volume={R. 47},
 editor={Research Centre for the Protection of Nature and Natural Resources of the Polish Academy of Sciences},
 copyright={Creative Commons Attribution BY 3.0 PL license},
 address={Warszawa},
 address={Kraków},
 journal={Protection of Nature},
 howpublished={online},
 year={1990},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={eng},
 type={Text},
 title={Plant communities in the Boatin biosphere reserve on the northern slopes of the Stara Planina Mts. (Central Bulgaria)},
 title={Zbiorowiska roślinne rezerwatu biosfery Boatin na północnych stokach masywu Starej Planiny (środkowa Bułgaria)},
 URL={http://www.rcin.org.pl/Content/215460/PDF/KR038_112962_r1990-r47_OP-Michalik-9-36.pdf},
 keywords={Bulgaria - nature conservation, Stara Planina, Boatin},
}