Church, society and monasticism : acts of the International Symposium, Rome, may 31- june 3 2006 - Zorzi, Selene M. Benedetta. (OLS)http://ftis/name/77305; López-Tello García, Eduardo. (OLS)http://ftis/name/72786 (Eos Verlag, 2009)

4 - Ioannes : Scotus Eriugena, ca. 810-ca. 877. (OLS)http://ftis/name/52864; Jeauneau, Éduard. (OLS)http://ftis/name/53954 (Periphyseon, 2000)