Paska, Bohdan. 2025. “The State Security Committee`s Use of Extrajudicial Repression Against the Ukrainian Helsinki Group (February 1977 – February 1979)”. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, no. 53 (September): 74-83. https://doi.org/10.31652/2411-2143-2025-53-74-83.