PRYLYPKO, Ruslan; MARTSENIUK, Nadiia. Social services for special contingent department of social security in theUkrainian SSR in the 1920s. XX century. Scientific Papers of the Vinnytsia Mykhailo Kotsyiubynskyi State Pedagogical University Series History, [S. l.], n. 26, p. 64–71, 2018. DOI: 10.31652/2411-2143-2018-26-64-71. Disponível em: https://www.nzhist.science/index.php/nzhist/article/view/911. Acesso em: 7 jun. 2026.