K Noreen, R People, "The icon of Santa Maria Maggiore, Rome: an image and its afterlifeRenaissance StudiesDie Geschichte römischer Kultbilder im MittelalterImages of the Mother of God: Perceptions of the Theotokos in Byzantium'', ed. Maria Vassilaki, 23-49. Aldershot, England and Burlington, VT: Ashgate, 2005.