The Easter Sermons of Gregory of Nyssa. Translation and Commentary : proceedings of the Fourth International Colloquium on Gregory of Nyssa. Cambridge, England: 11-15 September, 1987 - Spira, Andreas. (OLS)http://ftis/name/60246; Stead, G. Christopher. (OLS)http://ftis/name/62257; Klock, Christoph. (OLS)http://ftis/name/62256 (The Philadelphia Patristic Foundation, 1981)