Danylenko, Vasyl. “The Destructive Role of Russia in Ukrainian-German Relations (1920s)”. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, no. 51, Mar. 2025, pp. 48-55, https://doi.org/10.31652/2411-2143-2025-51-48-55.