Communities of the Blessed : social environment and religious change in Northern Italy, AD 200-400 / Mark Humphries. - Humphries, Mark. (OLS)http://pul/name/39185 (University Press, 2000)
Includes index.
Bibliography: p. 228-250.

Die Christus-Ikone : Eine theologische Hinführung / Christoph Schönborn . - Schönborn, Christoph von, card., 1945- (OLS)http://pul/name/11337 (Christiana-Verlag, 1984)