This article is about the river that flows through the Province of Udine. For the river that flows through San Marino and the Province of Rimini, see Ausa River.
^Richard J.A. Talbert, ed. (2000). Barrington Atlas of the Greek and Roman World: Map-By-Map Directory. Vol. I. Princeton, NJ and Oxford, UK: Princeton University Press. p. 273. ISBN0691049459.
^Hammond World Atlas (6 ed.). Hammond World Atlas Corporation. 2010. p. 69. ISBN9780843715606.
^The Times Comprehensive Atlas of the World (12 ed.). London: Times Books. 2007. ISBN9780061464508.
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