Laurence Marcellus Larson, Canute the Great: 995 – c. 1035 and the Rise of Danish Imperialism During the Viking Age, New York: Putnam, 1912, OCLC223097613, p. 257.
Edward A. Freeman, The History of the Norman Conquest of England: Its Causes and its Results, Volume 1 Oxford: Clarendon, 1867, p. 404, note 1.
Jim Bradbury, The Routledge Companion to Medieval Warfare, London: Routledge, 2004, 0-415-22126-9, p. 125.
Philip J. Potter, Gothic Kings of Britain: The Lives of 31 Medieval Rulers, 1016–1399, Jefferson, North Carolina: McFarland, 2009, 978-0-7864-4038-2, p. 12.
Herbert A. Grueber and Charles Francis Keary, A Catalogue of English Coins in the British Museum: Anglo-Saxon Series, Volume 2, London: Trustees [of the British Museum], 1893, p. lxxvii.
worldcat.org
Laurence Marcellus Larson, Canute the Great: 995 – c. 1035 and the Rise of Danish Imperialism During the Viking Age, New York: Putnam, 1912, OCLC223097613, p. 257.
Palle Lauring, tr. David Hohnen, A History of the Kingdom of Denmark, Copenhagen: Høst, 1960, OCLC5954675, p. 56.