Prokopov И. . The coin type "Satyr / incuse square" in the coin circulation of Southwestern Thrace. Bulgarian Numismatic Journal, [S. l.], v. 3, n. 1, p. 24–32, 2025. DOI: 10.5281/zenodo.15521265. Disponível em: https://bulgnj.com/index.php/e-journal/article/view/96. Acesso em: 8 feb. 2026.