Preiser-Kapeller, Johannes. “he ies hat o ot ind. roup ormation, olarization and onflict ithin etworks of olitical lites in the edieval oman mpire”. Journal of Historical Network Research 4 (May 10, 2020): 298–324. ccessed June 18, 2025. http://ojs.uni.lu/index.php/jhnr/article/view/81.