^Nicolle, The First Crusade 1096-1099: Conquest of the Holy Land, p. 32 "Eventually the Crusader forces outside Nicaea numbered around 4,200–4,500 cavalry and 30,000 infantry, excluding non-combattants."
^Pryor, Logistics of Warfare in the Age of the Crusades, pp. 49–50 "In addition, the besiegers made several efforts to storm the walls and they won a victory in pitched battle over the relieving army of Qilij Arslan, a force some 10,000 troops, mostly mounted archers."
Mayer, Hans Eberhard. The Crusades. London: Oxford University Press, 1972. ISBN0198730152
Nicolle, David. The First Crusade 1096–1099: Conquest of the Holy Land, Osprey Publishing, 2003.
Pryor, John H. Logistics of Warfare in the Age of the Crusades, Ashgate Publishing Ltd. 2006. ISBN0754651975
Riley-Smith, Jonathan Simon Christopher. The First Crusade and the Idea of Crusading. Philadelphia: University of Pennsylvania Press, 1986. ISBN0812280261
Runciman, Steven. A History of the Crusades, Volume I: The First Crusade and the Foundation of the Kingdom of Jerusalem. Cambridge: Cambridge University Press. 1951 (英语).