@misc{_Opis_1960,
 editor={Polska Akademia Nauk. Zakład Dendrologii i Pomologii w Kórniku},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 howpublished={online},
 year={1960},
 language={pol},
 type={Text},
 title={Opis drzewa doborowego. Wiąz K-01-},
 URL={http://www.rcin.org.pl/Content/145757/PDF/KOR001_177302_Wi%C4%85z-01.pdf},
 keywords={plus trees, chosen tree, selection of trees, genetics of forest trees, register of plus trees, Ulmus, elm},
}