ANTONIUK, Y. and VIEDIENIEIEV, D. 2022. 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. 23 (Jun. 2022), 133–141. DOI:https://doi.org/10.24919/2519-058X.23.258959.