Pseudo-Gregorii Agrigentini seu Pseudo-Gregorii Nysseni Commentarius in Ecclesiasten - Pseudo-Gregorius : Nyssenus. (OLS)http://ftis/name/77029; Noret, Jacques. (OLS)http://ftis/name/59516; Ettlinger, Gérard H. (OLS)http://ftis/name/72188; Gregorius Agrigentinus. (OLS)http://ftis/name/77030 (Leuven University Press, Brepols,, 2007)