L.N. Lebedinsky. "Rayok: The Music Lesson" in Modernism and Music: An Anthropology of Sources, ed. Daniel Albright, University of Chicago, 2004, ISBN0-226-01267-0 p.363. Also see Daniel Zhitomirsky. "Shostakovich the public and the private: reminiscences, materials, comments" in Daugava, 1990, No. 3. An English translation is available online as of March 2006
