CHURA, . V. ., and E. . KOPELTSIV-LEVYTSKA. “XIX ALL-UNION PARTY CONFERENCE AS A FACTOR OF THE COLLAPSE OF THE CPSU-KPU IN THE WESTERN REGIONS OF THE UkrSSR”. EAST EUROPEAN HISTORICAL BULLETIN, no. 20, Sept. 2021, doi:10.24919/2519-058X.20.240049.