@misc{Boratyński_Adam_Carpinus_1980,
 author={Boratyński, Adam},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 howpublished={online},
 year={1980},
 title={Carpinus betulus L.},
 type={Image},
 URL={http://rcin.org.pl/Content/190584/PDF/KOR001_224744_1980_Carpinus-betulus-L-.pdf},
 keywords={flower strukture, fruit structure, Betulaceae, Carpinus betulus, hornbeam},
}