Kazhdan, Alexander; Talbot, Alice-Mary; Alexakis, Alexander; Efthymiadis, Stephanos; McGrath, Stamatina; Sherry, Lee Francis; Zielke, Beate, eds. (1998). Dumbarton Oaks Hagiography Database of the Eighth, Ninth and Tenth Century (PDF). Washington, DC: Dumbarton Oaks.
