Тодоров, Иван Михайлов. “On the Origin of the Name «Philippoplis» — the Name of the Thracian City Pulpudeva (Nowadays Plovdiv — Republic of Bulgaria)”. Antiquities (Drevnosti). Kharkiv Historical & Archaeological Annual 15, no. 15 (August 21, 2018): 153-159. Accessed December 5, 2025. https://periodicals.karazin.ua/drevnosti/article/view/11235.