==External links==
*[http://www.orthodox.org.ph/content/view/211/50/ ''East-West Schism'']
*[http://www.fatheralexander.org/booklets/english/history_timothy_ware_1.htm#n4 Byzantium: The Great Schism, by Bp. Kallistos Ware]
*[http://www.newadvent.org/cathen/13535a.htm Catholic Encyclopedia: ''The Eastern Schism'']