Doroshko, Mykola S., and Oleksander V. Alekseichenko. “Imperial Expansionism and the Prospects for the Decline of Russia: A Historical and Political Analysis”. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, no. 56 (June 1, 2026): 196–205. Accessed August 14, 2026. https://vspu.net/nzhist/index.php/nzhist/article/view/1183.