IWANEK, Jan. Studia Politicae Universitatis Silesiensis Tom 1. Studia Politicae Universitatis Silesiensis, [S. l.], v. 1, 2017. Disponível em: https://trrest.vot.pl/ojsus/index.php/SPUS/article/view/5397. Acesso em: 6 maj. 2025.