ЯРАНЦЕВ, О.А. The concept of “eternal feudalism” in the works of E.M. Medvedev. Power and Administration in the East of Russia, [S. l.], v. 2, n. 4, 2009. Disponível em: https://vlast-dv.owebs.ru/article/view/17028. Acesso em: 8 nov. 2026.