Vita Caesaris, poglvalja 19–24, opisuje atentat na Cezara; izvodi su citiorani u „The Assassination of Julius Caesar, 44 BC”. EyeWitness to History. Pristupljeno 9 November 2005.. Za procjenu Nikolaja i njegove vjerodostojnosti v. Sihler, E.G. Annals of Caesar: A Critical Biography with a Survey of the Sources (New York : G. E. Stechert, 1911), pp. 293–4
