628
87. Barber, op. cit, p. 154.
629
88. Cited in ibid.
630
89. Cited in Oldenbourg, op. cit, p. 363.
631
90. Cited in Burl, op. cit, p. 207.
632
91. Sumption, op. cit, p. 232.
633
92. Barber, op. cit, pp. 169–170.
634
93. Strayer, op. cit, p. 158.
635
94. Ibid.
636
95. Ibid.
637
96. O'Shea, op. cit, pp. 239–246.
638
97. Sumption, op. cit, p. 235.
639
98. Barber, op. cit, p. 167.
640
99. Janet Hamilton and Bernard Hamilton, Christian Dualist Heresies in the Byzantine World C. 650–1405, Manchester University Press, Manchester, 1998, pp. 276–277.
