SZTYCHMILER, Ryszard. Istotne obowiązki małżeńskie. Canon Law. Legal and Historical Quarterly, [S. l.], v. 54, n. 1-2, p. 357–381, 2011. Disponível em: https://czasopisma.uksw.edu.pl/index.php/pk/article/view/4407. Acesso em: 8 dec. 2025.