KRAVCHUK, Mykola. Military factor of the state building of Ukraine (1917–1921): historical and legal aspect. Actual problems of law, [S. l.], n. 4, p. 34–39, 2018. DOI: 10.35774/app2017.04.034. Disponível em: https://appj.wunu.edu.ua/index.php/apl/article/view/408. Acesso em: 13 jul. 2025.