en
translation: Historical destinies of nations of the Volga and Ural regions - Collected papers. Proceedings of All-Russian scholarly conference "Historical destinies of nations of the Volga and Ural regions (XVI - the beginning of XVIII century)" and round table "Concepts of "Chuvash" and "Yasak Chuvash" in written sources of the XVIth -XVIIIth centuries as ethnic and social strata" (Kazan', December 6, 2013) held within the framework of the conference (Issue 4)
