From Citizendium, the Citizens' Compendium
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- Church, Clive H. (2004) The Politics and Government of Switzerland. Palgrave Macmillan. ISBN 0-333-69277-2.
- Dalton, O.M. (1927) The History of the Franks, by Gregory of Tours. Oxford: The Clarendon Press.
- Fahrni, Dieter. (2003) An Outline History of Switzerland. From the Origins to the Present Day. 8th enlarged edition. Pro Helvetia, Zürich. ISBN 3-908102-61-8
- Historical Dictionary of Switzerland (2002–). Published electronically and in print simultaneously in three national languages of Switzerland.