ROMAN, B. Borderland as a problem of political science. Border and Regional Studies, [S. l.], v. 1, n. 1, p. 65, 2013. DOI: 10.25167/ppbs1065. Disponível em: https://czasopisma.uni.opole.pl/index.php/p/article/view/1065. Acesso em: 19 aug. 2025.