RYABININ, Yevgeny. Russia’s Exogenous Factor in the Donbass Conflict. Strategic Review, [S. l.], n. 13, p. 97–110, 2020. DOI: 10.14746/ps.2020.1.6. Disponível em: https://pressto.amu.edu.pl/index.php/ps/article/view/25981. Acesso em: 18 jul. 2024.