Велики раскол — разлика између измена

* {{Cite journal|ref=harv|last1=Пузовић|first1=Владислав|last2=Николић|first2=Богдана|title=Антиохијски патријарх Петар III (1052–1056) и црквена криза 1054. године|journal=Зборник радова Византолошког института|volume=51|year=2014|pages=71-92|url=http://www.doiserbia.nb.rs/ft.aspx?id=0584-98881451071P}}

* John Romanides, ''[http://romanity.org/htm/rom.02.en.the_cure_of_the_neurobiological_sickness_of_rel.03.htm The Cure of the Neurobiological Sickness of Religion, the Hellenic Civilization of the Roman Empire, Charlemagne's Lie of 794 and His Lie Today]''

* {{Cite book|ref=harv|last=Siecienski|first=Anthony Edward|year=2010|title=The Filioque: History of a Doctrinal Controversy|publisher=Oxford University Press|url=https://books.google.com/books?id=auT8VbgOe48C}}

* {{Cite book|ref=harv|last=Sherrard|first=Philip|title=Church, Papacy, and Schism: A Theological Enquiry|year=1978|location=London|publisher=SPCK|url=https://books.google.com/books?id=Ag3ZAAAAMAAJ}}