TROFYMOVYCH V, TROFYMOVYCH L. UNDERGROUND ORGANIZATIONS OF PATRIOTIC YOUTH AND THEIR LIQUIDATION BY THE STATE SECURITY AGENCIES OF THE UKRAINIAN SSR (the second half of the 1950s – first half of the 1970s) . EEHB [Internet]. 2025Jun.26 [cited 2025Jul.1];(35):142-5. Available from: http://eehb.dspu.edu.ua/article/view/332690