SIWEK, T.; KAŃOK, J. THE SILESIAN IDENTITY OUTSIDE OF POLAND. Economic and Environmental Studies, [S. l.], v. 5, p. 105–115, 2021. Disponível em: https://czasopisma.uni.opole.pl/index.php/ees/article/view/3450. Acesso em: 16 jun. 2025.