@misc{Boratyński_Adam_Alnus_1980-1984,
 author={Boratyński, Adam},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 howpublished={online},
 year={1980-1984},
 title={Alnus incana (L.) Moench.},
 type={Image},
 URL={http://www.rcin.org.pl/Content/190605/PDF/KOR001_224058_1980-1984_Alnus-incana-.pdf},
 keywords={botanical drawings, grey alder},
}