カッシウス・ディオ
Alain Gowing, "Dio's Name". Classical Philology,Vol. 85, No. 1 (Jan., 1990), pp. 49–54. JSTOR link.
Millar, Fergus (1964). Study of Cassius Dio. Oxford University Press. pp. 250. ISBN 0198143362
Peck, Harry Thurston (1897). Harper's Dictionary of Classical Literature and Antiquities. Harper & Brothers. pp. 1687. ASIN B000K28KCI