TWARDY, Jan. Wilfried Engemann, Einführung in die Homiletik. Śląskie Studia Historyczno-Teologiczne, [S. l.], v. 39, n. 2, p. 469–471, 2006. Disponível em: https://trrest.vot.pl/ojsus/index.php/ssht/article/view/17323. Acesso em: 12 maj. 2025.