Slodička, Andrej. “The Primacy of the Apostle Peter and of the Roman Popes in A Reflection of Professor Mikuláš Russnák (1878-1954)”. Śląskie Studia Historyczno-Teologiczne 45, no. 1 (June 30, 2012): 142-159. Accessed May 19, 2024. https://www.journals.us.edu.pl/index.php/ssht/article/view/16208.