BILYI, D. Development of co-operative motion is among Kuban Ukrainians at the beginning of ХХ item. Skhid, [S. l.], n. 1(121), p. 55–58, 2013. DOI: 10.21847/1728-9343.2013.1(121).13417. Disponível em: http://skhid.kubg.edu.ua/article/view/13417. Acesso em: 26 jan. 2022.