Madzharov М. 2024. Coin Circulation along the Upper Valley of the Stryama River (6th – 4th centuries BC): The contribution has been presented during the international conference "First Bulgarian Numismatic Readings (BulgNR)", 10-12 November 2020. Bulgarian Numismatic Journal. 2, 2 (Dec. 2024), 1–20. DOI:https://doi.org/10.5281/zenodo.14561131.