Bigun, Igor. “The Raid of the Ivan Bogun Detachment to Chełm Land (May–July, 1944)”. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, no. 33 (October 4, 2020): 44–54. Accessed May 7, 2024. https://vspu.net/nzhist/index.php/nzhist/article/view/666.