The Athenian Agora; Volume 20; The Church of the Holy Apostles; Abbreviations. ΑΒΜ; A.K. Orlandos, Ἀρχείον τῶν Βυζαντινῶν Μνημείων τῆς Ἐλλάδος, Athens. Ἀρχ. Ἐφ.; Ἀρχαιολογική Έφημερίς, Athens. B.N.J.; ... Agora 20 ... Ebersolt; J. Ebersolt, Monuments d' architecture byzantine, Paris, 1934 ... École dans l'architecture byzantine, Paris, 1916 ... Lenoir, L'Architecture; A. Lenoir, L'architecture monastique, I, Paris, 1852
