POLTAVCHENKO, G.S. Non-Systemic Opposition in Russia: The History of the Issue. Administrative Consulting, [S. l.], n. 2, p. 9–17, 2025. DOI: 10.22394/1726-1139-2025-2-9-17. Disponível em: https://administrative-consulting.owebs.ru/article/view/14727. Acesso em: 8 nov. 2026.