Czarnecki, Piotr. “The Doctrine of the Ordo Sclavoniae in Light of Western Sources and the Issue of the Origins of the Dualist Heresy in Bosnia”. Studia Ceranea 12 (October 12, 2022): 11–28. Accessed April 26, 2024. https://czasopisma.uni.lodz.pl/sceranea/article/view/14556.