Grillmeier, Aloys S. J. Christ in Christian Tradition. Vol. 2, From the Council of Chalcedon (451) to Gregory the Great (590–604). Prt. 1, Reception and Contradiction: The Development of the Discussion about Chalcedon from 451 to the Beginning of the Reign of Justinian. Atlanta: John Knox Press, 1987.
Grillmeier, Aloys S. J. Christ in Christian Tradition. Vol. 2, Prt. 2, The Church of Constantinople in the Sixth Century. London: Mowbray, 1995.
Guillaumont, Antoine. Les ‘Kephalaia Gnostica’d’Evagre le Pontique et l’histoire de L‘Origenisme chez les Grecs et chez les Syriens. Paris: Éditions du Seuil, 1962.
Guillaumont, Antoine. Les Six Centuries des “Kephalaia Gnostica” d’Evagre le Pontique. Patrologia Orientalis, Tome XXVIII, Fascicule 1. Paris: Firmin-Didot e Cie, 1958.
Hausherr, Irénée, S. I. La Methode d’Oricuaison Hesychaste. Roma: Pont. Institutum Orientalium Studiorum, 1927.
Hennecke, Edgar. New Testament Apocrypha. Edited by Wilhelm Schneemelcher. Translated by R. McL. Wilson. Vol. 1, Gospels and Related Writings. Philadelphia: Westminster Press, 1963.
Hodges, Richard. Goodbye to the Vikings? Re-reading Early Medieval Archaeology. London: Gerard Duckworth & Co., 2006.
Hurtado, Larry W. Lord Jesus Christ: Devotion to Jesus in Earliest Christianity. Grand Rapids, MI: William Eerdmans Company, 2003.
[Damascene, John (attribution)]. Barlaam and Ioasaph. Translation by G. R. Woodward and H. Mattingly. Introduction by D. M. Lang. Cambridge, MA: Harvard University Press, 1983.
Kugel, James L. Traditions of the Bible: A Guide to the Bible As It Was at the Start of the Common Era. Cambridge, MA: Harvard University Press, 1998.
The Lives of the Desert Fathers. Introduction by Benedicta Ward. Translated by Norman Russell. Kalamazoo, MI: Cistercian Publications, 1981.
Louth, Andrew. The Origins of the Christian Mystical Tradition: From Plato to Denys. Oxford: Clarendon Press, 1981.
Marinelli, Emanuela. La Sindone: Testimone di una presenza. Cinisello Balsamo, It.: Edizioni San Paolo, 2010.
Maximus the Confessor. The Ascetic Life. The Four Centuries on Charity. Translated and annotated by Polycarp Sherwood. New York: The Newman Press, 1955.
McEvedy, Colin. The Penguin Atlas of Medieval History. Middlesex, England, 1976.
Ménard, Jacques É. ed. Le Traite sur la resurrection (NH I, 4). Québec: Les Presses de l’Université Laval, 1983.
Meyer, Robert T., trans. Palladius: The Lausiac History. Westminster, MD: Newman Press and Longmans, Green, and Co. 1965.
Nicolini-Zani, Matteo. La via radiosa per l’oriente: I testi e la storia del primo incontro del cristianesimo con il mondo culturale e religioso cinese (secoli VII–IX). Magnano It.: Edizioni Qiqajon, 2006.
di Ninive, Isacco. Discorsi ascetici: Terza collezione. A cura di Sabino Chiala’. Magnano, It.: Edizioni Qiqajon, 2004.
di Ninive, Isacco. Discorsi Spirituali: Capitoli sulla conoscenza, preghiere, contemplazione sull’argomento della gehenna, altri opuscoli. Traduzione a cura di Paolo Bettiolo. Magnano, It.: Edizioni Qiqajon, 1985.
Origen. Treatise on the Passover and Dialogue of Origen with Heraclides and His Fellow Bishops on the Father, the Son and the Soul. Translated by Robert J. Daly. Ancient Christian Writers, No. 54. New York: Paulist Press, 1992.
Ortiz de Urbina, Ignatius. Patrologia Syriaca: Altera edition emendata et aucta. Roma: Pontificium Institutum Orientalium Studiorum, 1965.