MALIARCHUK, O. . and SABADUKHA, V. . (2023) “YAROSLAV FEDORUK’S SCIENTIFIC AND ADMINISTRATIVE ACTIVITIES UNDER THE CONDITIONS OF THE CRISIS OF THE SOVIET SYSTEM (1960 – 1980s)”, EAST EUROPEAN HISTORICAL BULLETIN, (29), pp. 163–172. doi: 10.24919/2519-058X.29.292937.