Vehesh, Igor, and Mykola Vehesh. “SUBVERSIVE ACTIVITIES OF HUNGARIAN AND POLISH SABOTAGE GROUPS IN CARPATHIAN UKRAINE (1938 – 1939)”. International Relations of Ukraine: Scientific Searches and Findings, no. 31 (December 12, 2022): 130-152. Accessed June 6, 2023. https://mzu.history.org.ua/index.php/MZU/article/view/343.