Kosmas of Jerusalem; a more critical approach to his biography
Kazhdan, A. and Gero, S., "Kosmas of Jerusalem; a more critical approach to his biography", Byzantinische Zeitschrift 82, no. 1-2 (1989): 122-132.
https://doi.org/10.1515/byzs.1989.82.1-2.122
https://doi.org/10.1515/byzs.1989.82.1-2.122