@misc{Białobok_Stefan._Redaktor_Protection_1990,
 author={Białobok, Stefan. Redaktor},
 volume={18},
 editor={Białobok, Stefan. Redaktor},
 editor={Polska Akademia Nauk. Instytut Dendrologii},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 journal={Nasze drzewa leśne},
 address={Poznań},
 howpublished={online},
 year={1990},
 publisher={Wydawnictwo Arkadia},
 language={mul},
 title={Protection of trees},
 type={Text},
 URL={http://rcin.org.pl./Content/146746/PDF/KOR001_155447_1990_Ochrona-drzew.pdf},
 keywords={wild fruit trees, Cerasus avium, Pyrus communis, Malus sylvestris, protection of wild fruit trees},
}