RUDOVA, Lariss. The Subversions of Grigorii Oster in Soviet and Post-Soviet Times. Przegląd Rusycystyczny, [S. l.], n. 4, 2007. Disponível em: https://trrest.vot.pl/ojsus/index.php/PR/article/view/3801. Acesso em: 7 maj. 2025.