See P. van den Ven, “La vie ancienne de S. Syméon Stylite le Jeune (521–592),” in Subsidia Hagiographica 32 (Brussels: Société des Bollandistes, 1962 [part 1], 1970 [part 2]); and Harry J. Magoulias, “Lives of Byzantine Saints as Sources of Data for the History of Magic in the Sixth and Seventh Centuries A.D.: Sorcery, Relics, and Icons,” Byzantion 37 (1967), p. 256.