HRISSIMOV, Nikolay. On the Origins of Komitats in the First Bulgarian Empire. Studia Ceranea, [S. l.], v. 9, p. 429–453, 2019. DOI: 10.18778/2084-140X.09.23. Disponível em: https://czasopisma.uni.lodz.pl/sceranea/article/view/6734. Acesso em: 3 lis. 2024.