Nicolaus of Damascus, Vita Caesaris 26 (Greek text with Latin translation by Müller); Ronald Syme, Sallust (University of California Press, 1964), p. 228 online, The Roman Revolution (Oxford University Press, 1939, 2002), p. 221 online, and The Augustan Aristocracy (Oxford University Press, 1986), p. 33; Anthony Everitt, Augustus (Random House, 2007), p. 127 online; T. Rice Holmes, The Roman Republic and the Founder of the Empire (Oxford: Clarendon Press, 1928), p. 344 online.
Syme, Roman Revolution p. 222. For a discussion of the connection between the triumph and the consulship, see Mary Beard, The Roman Triumph (Harvard University Press, 2007), pp. 279–281, limited preview online.
Geoffrey S. Sumi, Ceremony and Power: Performing Politics in Rome between Republic and Empire (University of Michigan Press, 2005), pp. 198–201 online.
Velleius Paterculus 2.14.3; Syme, Augustan Aristocracy p. 72 and Roman Revolution pp. 195 (note 8) and 380; Harriet I. Flower, The Art of Forgetting: Disgrace and Oblivion in Roman Political Culture (University of North Carolina Press, 2006), p. 309, note 50 online; Susan Treggiari, Terentia, Tullia, and Publilia: The Women of Cicero's Family (Routledge, 2007), p. 148 online.
Fergus Millar, Rome, the Greek World, and the East (University of North Carolina Press, 2002), vol. 1, p. 251 online; Josiah Osgood, Caesar's Legacy: Civil War and the Emergence of the Roman Empire (Cambridge University Press, 2006), p. 228 online. An English translation of the text of the senate's decree and other inscriptional evidence appears in Naphtali Lewis and Meyer Reinhold, Roman Civilization: Selected Readings, vol. 1, The Republic and the Augustan Age (Columbia University Press, 1990), pp. 357–359 online.
Syme, Augustan Aristocracy p. 48; Jasper Griffin, "Look Your Last on Lyric: Horace Odes 4.15," Classics in Progress (Oxford University Press, 2006), p. 316 online. The quindecimviri are listed in order of admission to the collegium, with the exception of Agrippa.
Michael C.J. Putnam, Artifices of Eternity: Horace's Fourth Book of Odes (Cornell University Press, 1996), pp. 145–156 online.