" (2006)* Swan, Peter Michael, "The Augustan Succession: An Historical Commentary on Cassius Dio's Roman History, Books 55-56 (9 BC-AD 14)" (2004).
(2006)* Swan, Peter Michael, The Augustan Succession: An Historical Commentary on Cassius Dio’s Roman History, Books 55-56 (9 BC-AD 14) (2004).