LEDWOŃ, I. Promotor fidei, defensor patriae . Ethos. Kwartalnik Instytutu Jana Pawła II KUL, [S. l.], v. 26, n. 3, p. 213–217, 2013. Disponível em: https://czasopisma.kul.pl/index.php/ethos/article/view/19904. Acesso em: 8 luty. 2026.