@misc{Boratyński_Adam_Calluna_1980-1984,
 author={Boratyński, Adam},
 copyright={Creative Commons Attribution BY-SA 4.0 license},
 howpublished={online},
 year={1980-1984},
 type={Image},
 title={Calluna vulgaris (L.) Hull.},
 URL={http://rcin.org.pl/Content/190836/PDF/KOR001_224136_1980-1984_Calluna-vul.pdf},
 keywords={botanical drawings, common heather},
}