The ecclesiology of St. Nicephorus I, (758-828)

O'Connell, Patrick. The ecclesiology of St. Nicephorus I, (758-828): Patriarch of Constantinople : pentarchy and primacy / Patrick O'Connell . - Roma : Pont. Institutum Studiorum Orintalium, 1972 . - XX, 231 p. 24 cm. - Orientalia christiana analecta 194 .
К.: Бібліогр. : c. XIII-XX, Index