ANTONIUK, Y. ., and D. . VIEDIENIEIEV. “OPERATIONAL GAMES AS A METHOD OF STRUGGLE OF THE OUN SPECIAL DIVISIONS AGAINST THE SOVIET SPECIAL SERVICES IN WESTERN UKRAINE (1944 – THE BEGINNING OF THE 1950s)”. EAST EUROPEAN HISTORICAL BULLETIN, no. 23, June 2022, pp. 133-41, doi:10.24919/2519-058X.23.258959.