BIERNACKA-LUBAŃSKA, Małgorzata. Remarks on selected features of the Black Sea defensive fortifications of Thrace in the Early Byzantine period. Balcanica Posnaniensia. Acta et studia, [S. l.], v. 1, p. 255–264, 1984. DOI: 10.14746/bp.1984.1.22. Disponível em: https://pressto.amu.edu.pl/index.php/bp/article/view/55700. Acesso em: 3 oct. 2026.