Николов, Ангел, and Камен Станев. “Ritual Deviations and Bad Habits of the ‘Latin heretics’ in Byzantine and Slavic Polemical Literature of the Middle Ages”. Studia Ceranea 4 (December 30, 2014): 125–139. Accessed December 16, 2025. https://czasopisma.uni.lodz.pl/sceranea/article/view/5396.