Tserkova, Feriha, Daniela Klisarova, and Iliya Denev. 2017. “Molecular Taxonomy Study of Representatives of the Genus Gobius Inhabiting Coastal Waters of Black Sea Region”. Journal of BioScience and Biotechnology 5 (3):241-46. https://editorial.uni-plovdiv.bg/index.php/JBB/article/view/121.