HAMILTON, B. The Cathar council of Saint-Félix reconsidered. Archivum Fratrum Praedicatorum, [S. l.], v. 48, p. 23.0–53.0, 1978. Disponível em: https://heyjoe.fbk.eu/index.php/afp/article/view/12098. Acesso em: 19 giu. 2026.