The monographic series Subsidia Byzantinorossica was founded in 1996. Books featured: Gerhard Podskalski. Christianity and theological literature in Kievan Rus' (988-1237) John Meyendorf. Life and works of St. Gregory Palamas: Introduction to the study of S.A. Bugoslavsky. Old Russian literary works about Boris and Gleb: Historical and literary research K.K. Akentiev. The origins of the Svyatonikolsky tradition and its spread in Kievan Rus. Part I: The oldest evidence. K.K. Akentiev. Great Church Typicon Cod. Dresde A 104. Reconstruction of the text based on the materials of the archive of A.A. Dmitrievsky K.K. Akentiev. The oldest evidence of the appearance of Rous on the Byzantine historical scene