Historia ecclesiastiae 2.16.17, quoted in Moorhead, John (1978). "The Laurentian Schism: East and West in the Roman Church". Church History. 47 (2): 129. doi:10.2307/3164729. JSTOR3164729.
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Historia ecclesiastiae 2.16.17, quoted in Moorhead, John (1978). "The Laurentian Schism: East and West in the Roman Church". Church History. 47 (2): 129. doi:10.2307/3164729. JSTOR3164729.