POP, I. Ukrajina, Zakarpatsko a stredná Európa. Czech Journal of International Relations, Prague, Czech Republic, v. 27, n. 4, p. 43–54, 1992. DOI: 10.32422/cjir.1604. Disponível em: https://ojs3.iir.cz/index.php/cjir/article/view/1604. Acesso em: 4 dec. 2024.