Cameron, A. & J. Herrin, Constantinople in the early eighth century. The "Parastaseis syntomoi chronikai". Introduction, translation and commentary, Leiden 1984, § 35
Stichel, R. H. W., Die römische Kaiserstatue am Ende der Antike, Roma 1982, 112 no. 133
Preger, Th. , Scriptores Originum Constantinopolitanarum Vol. I: Hesychii illustrii origines Constantinopolitanae. Anonymi enarrationes breves chronographicae. Anonymi narratio de aedificatione templi S. Sophiae (= Hesychius; Parastaseis; Diegesis; Patria Constantinupoleos) (1901), 1901, Parastaseis 35; Patria II, 30
Parastaseis 35: At the same Milion [there are statues] of Sophia, the wife of Justin who reigned after Justinian the Great, and of Arabia, her daughter, and of Helena, the extraordinarily beautiful niece of Sophia, completely gilded.
Patria II, 30: At this Milion there stand statues of Sophia, the wife of Justin the Thracian, and of Arabia, her daughter, and of Helena, her niece.