BUZHAK, Kirill Valerievich. On Some Aspects of Administrative and Legal Regulation of External Migration in the Russian-Byzantine Treaty of 907 year. Administrative Consulting, [S. l.], n. 12, p. 151–158, 2014. Disponível em: https://administrative-consulting.owebs.ru/article/view/12757. Acesso em: 8 nov. 2026.