The butterflies of the Ograzden Mountain in south-west Bulgaria (Lepidoptera: Rhopalocera and Grypocera)
Ganev, Julius
Article
1986
Phegea
14
89--96
BioStor
Dutch
Antwerpen, Vlaamse Vereniging voor Entomologie,
BioStor: https://biostor.org/reference/184321
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