Found in articles
Emergence of Russia 750-1200 (англиски). Routledge. ISBN 978-1-317-87224-5. Stephenson, Paul (2000). Byzantium's Balkan Frontier: A Political Study of the Northern
History of Russia, Central Asia and Mongolia, Blackwell Publishing, 1998, pp. 286–288. ISBN 0-631-20814-3. For a discussion of Slavic origins, see Paul M.
„The UK & Russia - A Troubled Relationship Part I“ (PDF). Архивирано од изворникот (PDF) на 2008-09-01. Посетено на 2021-08-19. Murphy, Paul (2004), The
175–210. Tarasov, Oleg (2004). Icon and Devotion: Sacred Spaces in Imperial Russia (January 3, 2004. изд.). Reaktion Books. ISBN 1-86189-118-0. - Total pages:
Crusade: America and the Tragedy of Post-Communist Russia. New York: W.W. Norton, 2000, 320 pages. ISBN 0-393-32226-2 Paul R. Gregory and Robert C. Stuart