2016 "Comprendre les 'Sarrasins' à Byzance dans la première moitié du IXe siècle," in: N. S. M. Matheou, T. Kampianaki, L. M. Bondioli (Hrsg.), From Constantinople to the Frontier. The City and the Cities, Leiden/Boston, 277-298.
2013 Arabo-Byzantine relations in the 9th and 10th centuries as an area of cultural rivalry," in: A. Kralides, A. Gkoutzioukostas (Eds.), Proceedings of the international Symposium 'Byzantium and The Arab World: Encounter of Civilizations' (Thessaloniki, 16-18 Dec. 2011), Thessaloniki 2013, 465-478.
2012 "Arabo-Byzantine traffic of manuscripts and the connections between the Graeco-Arabic translation movement and the first Byzantine 'renaissance' (9th–10th centuries)," in: M. Janocha, A. Sulikowska, I. Tatarova (Eds.), Byzantium and Renaissances. Dialogue of Cultures, Heritage of Antiquity. Tradition and Modernity, Warsaw 2012, pp. 177-194.