=== Litteratur ===
<div class="references-small">
* Bachrach, Bernard S. [http://links.jstor.org/sici?sici=0040-165X%28198507%2926%3A3%3C505%3AOTOOWT%3E2.0.CO%3B2-Q "On the Origins of William the Conqueror's Horse Transports."] ''Technology and Culture'', Vol. 26, No. 3. (Jul., 1985), pp.&nbsp;505–531.
* Brown, Gordon S. ''The Norman Conquest of Southern Italy and Sicily''. McFarland, 2003, {{ISBN|978-0-7864-1472-7}}
* Chalandon, Ferdinand. ''Histoire de la domination normande en Italie et en Sicilie''. Paris: 1907.
* France, John. "The Occasion of the Coming of the Normans to Italy." ''Journal of Medieval History'', Vol. 17 (1991), pp.&nbsp;185–205.
* Gay, Jules. ''L'Italie méridionale et l'empire Byzantin: Livre II''. Burt Franklin: New York, 1904.
* Gravett, Christopher, and Nicolle, David. ''The Normans: Warrior Knights and their Castles''. [[Osprey Publishing]]: Oxford, 2006.
* Houben, Hubert (translated by Graham A. Loud and Diane Milburn). ''Roger II of Sicily: Ruler between East and West''. Cambridge University Press, 2002.
* Joranson, Einar. "[http://links.jstor.org/sici?sici=0038-7134%28194807%2923%3A3%3C353%3ATIOTCO%3E2.0.CO%3B2-N The Inception of the Career of the Normans in Italy: Legend and History.]" ''[[Speculum]]'', Vol. 23, No. 3. (Jul., 1948), pp.&nbsp;353–396.
* Loud, Graham Alexander. "How 'Norman' was the Norman Conquest of Southern Italy?" ''Nottingham Medieval Studies'', Vol. 25 (1981), pp.&nbsp;13–34.
* Loud, Graham Alexander. "Continuity and change in Norman Italy: the Campania during the eleventh and twelfth centuries." ''Journal of Medieval History'', Vol. 22, No. 4 (December, 1996), pp.&nbsp;313–343.
* Loud, Graham Alexander. [http://links.jstor.org/sici?sici=0013-8266%28199909%29114%3A458%3C815%3ACWAPIT%3E2.0.CO%3B2-P "Coinage, Wealth and Plunder in the Age of Robert Guiscard."] ''English Historical Review'', Vol. 114, No. 458. (Sep., 1999), pp.&nbsp;815–843.
* Matthew, Donald. ''The Norman Kingdom of Sicily''. Cambridge University Press, 1992.
* [[John Julius Norwich|Norwich, John Julius]]. ''The Normans in the South 1016-1130''. London: Longman, 1967.
* Norwich, John Julius. ''The Kingdom in the Sun 1130-1194''. London: Longman, 1970.
* Skinner, Patricia. ''Family Power in Southern Italy: The Duchy of Gaeta and its Neighbours, 850-1139''. Cambridge University Press: 1995.
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