Erdö, Peter. “Osservazioni Giuridico-Canoniche Sulla Lettera Apostolica ‘Apostolos Suos’”. Canon Law. Legal and Historical Quarterly 42, no. 3-4 (December 20, 1999): 27–38. Accessed December 8, 2025. https://czasopisma.uksw.edu.pl/index.php/pk/article/view/4999.