@misc{Boratyńska_Krystyna_Systematics_1990,
 author={Boratyńska, Krystyna and Boratyński, Adam},
 volume={10},
 editor={Białobok, Stefan. Redaktor},
 editor={Polska Akademia Nauk. Instytut Dendrologii},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 address={Warszawa-Poznań},
 journal={Nasze drzewa leśne},
 howpublished={online},
 year={1990},
 publisher={Państwowe Wydawnictwo Naukowe},
 language={pol},
 type={Text},
 title={Systematics and geographic distribution},
 URL={http://www.rcin.org.pl/Content/145989/PDF/KOR001_154193_1990_Systematyka-i-geogra.pdf},
 keywords={beech, systematics, geographical distribution, Fagus sylvatica},
}