Szumiło, Mirosław. “Cooperation of the Slovak Bishop Pavel Hnilica With Polish Catholics During 1964-1989”. Saeculum Christianum. Historical Writings 30, no. 1 (November 6, 2023): 259–271. Accessed May 18, 2024. https://czasopisma.uksw.edu.pl/index.php/sc/article/view/13344.