Rozhkova, L. I. “Dissident Movement in Sumy Region in the 1960s-1980s: Personalities, Ideas, Directions of Activity”. Zaporizhzhia Historical Review 2, no. 52 (December 29, 2019): 88-93. Accessed October 16, 2021. https://istznu.org/index.php/journal/article/view/194.