SPUS, Redakcja. Studia Politicae Universitatis Silesiensis Tom 4-5. Studia Politicae Universitatis Silesiensis, [S. l.], v. 45, 2017. Disponível em: https://journals.us.edu.pl/index.php/SPUS/article/view/5278. Acesso em: 30 kwi. 2025.