LEVCHUK, Kostiantyn. The crisis and decay of the CPSU-CPU in 1986-1991. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, [S. l.], n. 29, p. 43–47, 2019. DOI: 10.31652/2411-2143-2019-29-43-47. Disponível em: https://vspu.net/nzhist/index.php/nzhist/article/view/596.. Acesso em: 2 may. 2024.