Lindqvist, Thomas, 'Early Political Organisation: (a) An Introductory Survey', in The Cambridge History of Scandinavia: Prehistory to 1520, ed. Knut Helle. Cambridge University Press, 2003. ISBN 0-521-47299-7. pp. 160–67.
Williams, Gareth, 'Kingship, Christianity and coinage: monetary and political perspectives on silver economy in the Viking Age', in Silver Economy in the Viking Age, ed. James Graham-Campbell and Gareth WIlliams, pp. 177–214; ISBN 978-1-59874-222-0
Lindqvist, Thomas, 'Early Political Organisation: (a) An Introductory Survey', in The Cambridge History of Scandinavia: Prehistory to 1520, ed. Knut Helle. Cambridge University Press, 2003. ISBN 0-521-47299-7. pp. 160–67.
Hadley, D.M., The Vikings in England: Settlement, Society and Culture. Manchester University Press, 2006. ISBN 0-7190-5982-8
Hall, Richard, Exploring the World of the Vikings. Thames and Hudson, 2007. ISBN 978-0-500-05144-3
Hall, Richard, Viking Age Archaeology (series Shire Studies), 2010. ISBN 978-0-7478-0063-7
