BEDNORZ, Herbert. Préparer le Concile des jeunes. Audacieuse aventure. Śląskie Studia Historyczno-Teologiczne, [S. l.], v. 6, p. 365–366, 1973. Disponível em: https://journals.us.edu.pl/index.php/ssht/article/view/22471. Acesso em: 6 grudz. 2025.