UKHACH, Vasyl. The genesis of the obligation to protest the motherland during the revival of the Ukrainian state (1917-1921). Actual problems of law, [S. l.], n. 2, p. 27–32, 2023. DOI: 10.35774/app2023.02.027. Disponível em: https://appj.wunu.edu.ua/index.php/apl/article/view/1592. Acesso em: 11 jul. 2025.