↑ "Great Schism". Oxford University Press. 2017. สืบค้นเมื่อ 21 March 2017.
1 2 Cross, FL, ed. (2005). "Great Schism (1)". The Oxford Dictionary of the Christian Church (article). New York: Oxford University Press. ISBN0-19-280290-9.
↑ D'Agostino, MG (2008), Il Primato della Sede di Roma in Leone IX (1049–1054). Studio dei testi latini nella controversia greco-romana nel periodo pregregoriano, Cinisello Balsamo: San Paolo Unknown parameter |trans_title= ignored (help)
↑ Bayer, Axel (2002), Spaltung der Christenheit. Das sogennante Morgenländische Schisma von 1054 (in German), Köln-Weimar-WienCS1 maint: Unrecognized language (link)
↑ Lembke, Martin (Spring 2010), Meetings with the World's Religions (lecture), Lund University: Centre for Theology and Religious Studies
