Nelson's New Christian Dictionary : The Authoritative Resource On the Christian World - Kurian, George T. (OLS)http://ftis/name/52084 (Nelson Publishers,, 2001)

Contro gli avversari delle icone - Theodorus : Studita, santo, ca 759-826. (OLS)http://ftis/name/72567; Calisi, Antonio. (OLS)http://ftis/name/95244; Fogliadini, Emanuela. (OLS)http://ftis/name/82828 (Jaca Book,, 2022)