[Agora Publication Page] Agora 20, s. 15, p. 1

The Athenian Agora; Volume 20; The Church of the Holy Apostles; Introduction. K.S. Pittakys, L' ancienne Athènes, 1835, pp. 43, 46, 48. Lenoir, L' architecture monastique, I, 1852, p. 252. A. Mommsen, ... Agora 20 1 ... O. Wulff, Die Baukunst, II, 1903, pp. 395, 481 ... A. Choisy, Histoire de l'architecture, II, 1889, pp. 34-35 ... J. Strzygowski, Die Baukunst der Armenier, 1918, II, p. 798