Wierzbiński, S. (2020). Deserters, Traitors and Spies: The Byzantine Approach in the Light of Selected Military Treaties from the 10th Century. In Z. A. Brzozowska, M. J. Leszka, K. Marinow, & T. Wolińska (Eds.), & (Ed.), Phantom of Muhammad, Shade of Samuel Byzantine Empire in Relation to Members of Other Cultures and Religions (7th–15th c.): No. XXXIX (pp. 177-194). Lodz University Press. https://doi.org/10.18778/8142-804-0.09