One or more of the preceding sentences incorporates text from a publication now in the public domain: Chisholm, Hugh, ed. (1911). "Aedesius". Encyclopædia Britannica. Vol. 1 (11th ed.). Cambridge University Press. p. 244. This cites: Ritter and Preller, p. 552 (presumably of Historia philosophiae Graeco-Romanae); Ritter's Geschichte der Philosophie; T. Whittaker, The Neoplatonists (Cambridge, 1901).