Stopchak, Mykola. “The Second Winter Campaign of the Army of Ukrainian People Republic: Modern Domestic Historiography”. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, no. 39 (April 22, 2022): 97–108. Accessed May 9, 2024. https://vspu.net/nzhist/index.php/nzhist/article/view/765.