MYSZOR, Wincenty. Birger A. Pearson, Gnosticism, Judaism and Egyptian Christianity. Śląskie Studia Historyczno-Teologiczne, [S. l.], v. 30, p. 361–363, 1997. Disponível em: https://journals.us.edu.pl/index.php/ssht/article/view/21094. Acesso em: 5 grudz. 2025.