APA:
Sopotlieva, Desislava, Apostolova, Iva (2007). The association Erysimo-trifolium Micev. 1977 in Bulgaria and some remarks on its Mediterranean character.
Hacquetia, letnik 6, številka 2, str. 131-141.
URN:NBN:SI:DOC-5ZABOUPQ from http://www.dlib.si
MLA:
Sopotlieva, Desislava, Apostolova, Iva. "The association Erysimo-trifolium Micev. 1977 in Bulgaria and some remarks on its Mediterranean character."
Hacquetia letnik 6. številka 2 (2007) str. 131-141.
<http://www.dlib.si/?URN=URN:NBN:SI:DOC-5ZABOUPQ>