ERDÖ, Peter. Osservazioni giuridico-canoniche sulla lettera apostolica "Apostolos suos". Prawo Kanoniczne, [S. l.], v. 42, n. 3-4, p. 27–38, 1999. DOI: 10.21697/pk.1999.42.3-4.02. Disponível em: https://czasopisma.uksw.edu.pl/index.php/pk/article/view/4999. Acesso em: 10 feb. 2026.