(en) Ronald Syme, The Roman revolution, Oxford, Clarendon press, , 568 p. (BNF31425326), p. 279
(en) Robert S. Broughton, The Magistrates of the Roman Republic, vol. 2 : 99 Β. C. - 31 Β. C., New York, American philological association, coll. « Philological monographs » (no XV.II), , 647 p. (BNF31878141), p. 417