HOLZER, J. Core, periphery, borderland. Border and Regional Studies, [S. l.], v. 1, n. 1, p. 72, 2013. DOI: 10.25167/ppbs1071. Disponível em: https://czasopisma.uni.opole.pl/index.php/p/article/view/1071. Acesso em: 21 aug. 2025.