↑John E. H. Spaul: Ala². The Auxiliary Cavalry Units of the Pre-Diocletianic Imperial Roman Army. Nectoreca Press, Andover 1994, ISBN 0-9525062-0-3, S. 72.
↑Margaret M. Roxan: Roman Military Diplomas 1954–1977 (= University of London, Institute of Archaeology. Occasional Publications, Band 2). Institute of Archaeology, London 1978, Nr. 21, S. 50–51, Anm. 8 und 9.
↑Tatiana Alexandrovna Ivleva: Britons abroad: the mobility of Britons and the circulation of British-made objects in the Roman Empire. Dissertation, Leiden University 2012, S. 71–72, 476 (Online).