Nicol, 1962, pp. 5-6. Nicol, D. M. (1962). «The Greeks and the Union of the Churches. The Report of Ogerius, Protonotarius of Michael VIII Palaiologos, in 1280». Proceedings of the Royal Irish Academy, Section C.(en inglés)63: 1-16. JSTOR25505111.
Nicol, 1962, p. 5. Nicol, D. M. (1962). «The Greeks and the Union of the Churches. The Report of Ogerius, Protonotarius of Michael VIII Palaiologos, in 1280». Proceedings of the Royal Irish Academy, Section C.(en inglés)63: 1-16. JSTOR25505111.
Nicol, 1962, pp. 2-4. Nicol, D. M. (1962). «The Greeks and the Union of the Churches. The Report of Ogerius, Protonotarius of Michael VIII Palaiologos, in 1280». Proceedings of the Royal Irish Academy, Section C.(en inglés)63: 1-16. JSTOR25505111.
Nicol, 1962, pp. 4-5. Nicol, D. M. (1962). «The Greeks and the Union of the Churches. The Report of Ogerius, Protonotarius of Michael VIII Palaiologos, in 1280». Proceedings of the Royal Irish Academy, Section C.(en inglés)63: 1-16. JSTOR25505111.
Nicol, 1962, pp. 4, 8. Nicol, D. M. (1962). «The Greeks and the Union of the Churches. The Report of Ogerius, Protonotarius of Michael VIII Palaiologos, in 1280». Proceedings of the Royal Irish Academy, Section C.(en inglés)63: 1-16. JSTOR25505111.
Nicol, 1962, pp. 6-7. Nicol, D. M. (1962). «The Greeks and the Union of the Churches. The Report of Ogerius, Protonotarius of Michael VIII Palaiologos, in 1280». Proceedings of the Royal Irish Academy, Section C.(en inglés)63: 1-16. JSTOR25505111.