Поход руси против Византии (830-е годы) (Russian Wikipedia)

Analysis of information sources in references of the Wikipedia article "Поход руси против Византии (830-е годы)" in Russian language version.

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Ignatios, the Deacon, approximately 775-approximately 848. The correspondence of Ignatios, the Deacon. — Washington, D.C.: Dumbarton Oaks Research Library and Collection, 1997. — xi, 244 pages с. — ISBN 0884022439. Архивировано 20 мая 2022 года.

worldcat.org

Ignatios, the Deacon, approximately 775-approximately 848. The correspondence of Ignatios, the Deacon. — Washington, D.C.: Dumbarton Oaks Research Library and Collection, 1997. — xi, 244 pages с. — ISBN 0884022439. Архивировано 20 мая 2022 года.