History of the Russian Orthodox Church (English Wikipedia)

"Patriarch Tikhon's Catacomb Church. History of the Russian True Orthodox Church". Церковные Ведомости Русской Истинно-Православной Церкви (catacomb.org.ua). Retrieved 2007-07-12.

chrysostom.org

Damick, Andrew S. "Life of the Apostle Andrew". chrysostom.org. Archived from the original on 2007-07-27. Retrieved 2007-07-12.

Voronov, Theodore (2001-10-13). "The Baptism of Russia and Its Significance for Today". orthodox.clara.net. Archived from the original on 2007-04-18. Retrieved 2007-07-12.

Dumitru Bacu, The Anti-Humans. Student Re-Education in Romanian Prisons Archived 2007-09-27 at the Wayback Machine, Soldiers of the Cross, Englewood, Colorado, 1971. Originally written in Romanian as Piteşti, Centru de Reeducare Studenţească, Madrid, 1963

Matusiak, John. "A History and Introduction of the Orthodox Church in America". Orthodox Church in America. Retrieved 2007-07-12.

Talantov, Boris (1968). "The Moscow Patriarchate and Sergianism". Orthodox Christian Information Center (orthodoxinfo.com). Retrieved 2007-07-12. (English translation).

Sermons to young people by Gheorghe Calciu-Dumitreasa. Given at the Chapel of the Romanian Orthodox Church Seminary, The Word online. Bucharest http://www.orthodoxresearchinstitute.org/resources/sermons/calciu_christ_calling.htm

Belikow, Yaroslav (December 11, 2004). "The Visit of His Eminence Metropolitan Laurus to the Parishes of Argentina and Venezuela". Russian Orthodox Church Outside of Russia (russianorthodoxchurch.ws). Archived from the original on April 29, 2007. Retrieved 2007-07-12.

The Washington Post Anti-Communist Priest Gheorghe Calciu-Dumitreasa By Patricia Sullivan Washington Post Staff Writer Sunday, November 26, 2006; p. C09 https://www.washingtonpost.com/wp-dyn/content/article/2006/11/25/AR2006112500783.html

Damick, Andrew S. "Life of the Apostle Andrew". chrysostom.org. Archived from the original on 2007-07-27. Retrieved 2007-07-12.
Voronov, Theodore (2001-10-13). "The Baptism of Russia and Its Significance for Today". orthodox.clara.net. Archived from the original on 2007-04-18. Retrieved 2007-07-12.
Dumitru Bacu, The Anti-Humans. Student Re-Education in Romanian Prisons Archived 2007-09-27 at the Wayback Machine, Soldiers of the Cross, Englewood, Colorado, 1971. Originally written in Romanian as Piteşti, Centru de Reeducare Studenţească, Madrid, 1963
Ostling, Richard. "Cross meets Kremlin". Time. June 24, 2001.
Alekseev, Valery. ИСТОРИКО-КАНОНИЧЕСКАЯ СПРАВКА о причинах, побуждающих верующих покидать Московскую патриархию (in Russian). Archived from the original on 2007-09-28. Retrieved 2007-07-12. (Created for the government of Moldova).
Belikow, Yaroslav (December 11, 2004). "The Visit of His Eminence Metropolitan Laurus to the Parishes of Argentina and Venezuela". Russian Orthodox Church Outside of Russia (russianorthodoxchurch.ws). Archived from the original on April 29, 2007. Retrieved 2007-07-12.

Herbermann, Charles, ed. (1913). "The Religion of Russia" . Catholic Encyclopedia. New York: Robert Appleton Company.