BIERNACKI, Andrzej. Remarks on the issue of urban agglomerations in the Diocese of Thraciae (4th–6th centuries). State of research and prospects. Balcanica Posnaniensia. Acta et studia, [S. l.], v. 5, p. 391–398, 1990. DOI: 10.14746/bp.1990.5.29. Disponível em: https://pressto.amu.edu.pl/index.php/bp/article/view/52708. Acesso em: 8 aug. 2026.