Brand, Charles M. (1962). "The Byzantines and Saladin, 1185–1192: Opponents of the Third Crusade". Speculum. 37 (2): 167–181. doi:10.2307/2849946. JSTOR2849946. S2CID162541416.
Brand, Charles M. (1962). "The Byzantines and Saladin, 1185–1192: Opponents of the Third Crusade". Speculum. 37 (2): 167–181. doi:10.2307/2849946. JSTOR2849946. S2CID162541416.
Brand, Charles M. (1962). "The Byzantines and Saladin, 1185–1192: Opponents of the Third Crusade". Speculum. 37 (2): 167–181. doi:10.2307/2849946. JSTOR2849946. S2CID162541416.