{"id":"000318049","type":"book","title":"Observations on the date of the apse mosaic of the church of Hagia Sophia in Constantinople","pages":"107-110","container-title":"Actes du XIIe Congrès international d'études byzantines, Ochride 10 - 16 septembre 1961, 3","author":[{"family":"Galavaris","given":"G.P."}]}