Whalen, Brett (2007). "Rethinking the Schism of 1054: Authority, Heresy, and the Latin Rite". Traditio. 62: 1–24. doi:10.1017/S0362152900000519.
Nicol, Donald (21 March 2016). "The Byzantine reaction to the Second Council of Lyons, 1274". Studies in Church History. 7: 113–146. doi:10.1017/S0424208400016491.
Ware, Kallistos (1972). D. Baker (ed.). "Orthodox and Catholics in the Seventeenth Century: Schism or Intercommunion?". Studies in Church History. 9: 259–276. doi:10.1017/S042420840000588X. S2CID163450438.
"Pat. Bartholomew attempted to convince several Athonite abbots and monks that there are no dogmatic differences between Orthodoxy and Catholicism, and that reunion with the Catholic church is inevitable." https://orthochristian.com/125924.html
Ware, Kallistos (1972). D. Baker (ed.). "Orthodox and Catholics in the Seventeenth Century: Schism or Intercommunion?". Studies in Church History. 9: 259–276. doi:10.1017/S042420840000588X. S2CID163450438.