@misc{Boratyński_Adam_Erica_1980-1984,
 author={Boratyński, Adam},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 howpublished={online},
 year={1980-1984},
 type={Image},
 title={Erica tetralix L.},
 URL={http://www.rcin.org.pl/Content/190870/PDF/KOR001_224379_1980-1984_Erica-tetralix-L-.pdf},
 keywords={botanical drawings, cross-leaved heath},
}