DZIERŻON, KS. GINTER. “The Impact of Error and Ignorance about the Substance of a Legal Act on Its invalidity(can. 126 CIC)”. Canon Law. Legal and Historical Quarterly 61, no. 1 (April 16, 2018): 3–14. Accessed December 8, 2025. https://czasopisma.uksw.edu.pl/index.php/pk/article/view/4034.