Urban bronze coins of small denomination from the Propontis area with images of a conical vessel with two handles, dynastic symbol of the coinage of the early Odrysian kings of the 5th―4th centuries B. C. ; Genealogy of the Odrysian dynasty from the end of the 6th to the 3rd quarter of 4th century B. C. ; Catalogue of early Thracian tribal coins of 6th―5th century B. C., anepigraphic types of coins minted on the territory of the early Odrysian kingdom and early Odrysian regal coins of 5th―4th century B. C. / Stavri Atanasov Topalov