4. Scito te ipsum - Abaelardus, Petrus, 1079-1142. (OLS)http://ftis/name/53543; Ilgner, Rainer M. (OLS)http://ftis/name/73244 (Petri Abaelardi Opera Theologica, 2001)

Vol. 2 - Wiederkehr, Dietrich. (OLS)http://ftis/name/58651 (Benziger,, 1973)