Sources
- Ferzoco, George. "The Origin of the Second Crusade". In Michael Gervers (ed.), The Second Crusade and the Cistercians. New York: St. Martin's Press, 1992 and available online.
- Runciman, Steven, A History of the Crusades, vol. II: The Kingdom of Jerusalem and the Frankish East, 1100-1187. Cambridge University Press, 1952.
- Setton, Kenneth, ed. A History of the Crusades, vol. I. University of Pennsylvania Press, 1958 (available online).
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