Title: Hē apolytrōsis tēs Hagias Sophias (metaphrasis "Esperias") /
Authors: Douglas, John Albert.; Michalopoulos, Grēgorēs
Publisher: Ekdosis tōn ephēmeridōn "Eleutherēs Hōra" kai "Neoi Anthrōpoi",
Year: 1990
Subjects: Ayasofya Müzesi History.; Architecture, Byzantine Turkey Istanbul History.; Church architecture Turkey Istanbul History.; Mosques Turkey Istanbul.