BILIARSKY, I. Les circonscriptions administratives en Bulgarie au 13e siècle. Byzantina Symmeikta, [S. l.], v. 13, p. 177–202, 1999. DOI: 10.12681/byzsym.866. Disponível em: https://ejournals.epublishing.ekt.gr/index.php/bz/article/view/3657. Acesso em: 19 dec. 2024.