SOKYRSKA, V.; KRUPENYA, I.; DIDENKO, K. Relations between the RSFSR and the Ukrainian SSR in the 1920s: diplomatic and administrative-institutional aspects. Przegląd Nauk Historycznych/Review of Historical Sciences, Łódź, v. 20, n. 2, p. 79–101, 2021. DOI: 10.18778/1644-857X.20.02.04. Disponível em: https://www.czasopisma.uni.lodz.pl/pnh/article/view/12124. Acesso em: 19 may. 2024.