Andrew Lintott, The Constitution of the Roman Republic (Oxford University Press, 1999), p. 110 online. Moreover, the perception that the dictator was a praetor maximus (supreme praetor) apparently results from confusion about a fragmentary inscription, and a passage in Livy, that imply that, on one occasion, the title-holder acted as dictator; see Lintott, Constitution p. 104, especially note 47.
