CATANZARO, A. 2013. The political problem of internal "ἀσφάλεια" in Niketas Choniates’ Chronikè Diéghesis: a contributing factor to the Constantinople’s fall in 1204. Byzantina Symmeikta. 22, (Feb. 2013), 221–242. DOI:https://doi.org/10.12681/byzsym.1045.