Title: Vasileios Digenēs Akritas : ta emmetra keimena Athēnōn (prōēn Androu, meta symplērōseōn kai parallagōn ek tēs diaskeuēs Trapezountos), Kryptopherēs kai Eskorial /
Authors: Kalonaros, Petros P.
Publisher: Ekdoseis D. N. Papadēma,
Year: 1970