KAMCZYK, Wojciech. Tom 31 (1998). Śląskie Studia Historyczno-Teologiczne, [S. l.], v. 31, p. 473–475, 1998. Disponível em: https://journals.us.edu.pl/index.php/ssht/article/view/20877. Acesso em: 5 luty. 2026.