@misc{Boratyński_Adam_Corylus_1980,
 author={Boratyński, Adam},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 howpublished={online},
 year={1980},
 type={Image},
 title={Corylus mandshurica Maxim.},
 URL={http://rcin.org.pl./Content/206413/PDF/KOR001_226363_Corylus-mandshurica-M.pdf},
 keywords={fruit structure, Corylus sieboldiana},
}