KABYTOV, Petr; DUBMAN, Edward; LEONTIEVA, Olga. The Middle Volga and Trans-Volga Region in the Context of Development of the Russian State System: a Modern Concept. Quaestio Rossica, [S. l.], n. 2, p. 117 – 131, 2015. DOI: 10.15826/qr.2015.2.099. Disponível em: https://qr.urfu.ru/ojs/index.php/qr/article/view/099. Acesso em: 29 nov. 2023.