St. Slavic primates of the Cyril and Methodius and their cultural role in Slavdom and Russia: Essay E. de Witte. - St. Petersburg: The Island of Zealots rus. east. enlightenment in memory of the imp. Alexander III, 1908.-VIII, 97 p. ; 25. -
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I. Cyril (circa 827-869). II. Methodius (circa 815-885). III. Witte, E. de.