KRAMAR, Yurii, and Anatolii SHVAB. 2020. “THE SOVIET SPECIAL SERVICES’ PROPAGANDA AND SABOTAGE ESPIONAGE ACTIVITIES IN THE TERRITORY OF WESTERN VOLYN (1919 – 1921)”. EAST EUROPEAN HISTORICAL BULLETIN, no. 16 (September):163-75. https://doi.org/10.24919/2519-058x.16.210893.