1880-1956 1881-1950 1881-1952 1885-1916 1890-1942 1894-1970 20thcentury africanamericansingers applied authors biography boris correspondence correspondenceberberova correspondencekhodasevich criticismandinterpretationgrigorʹev criticismandinterpretationtessa delio history hollingworth intellectuallife khodasevich kissin letastetter ma margolina-khodasevich muratov muratova nebraska olʹgaborisovna poets psychology rainey russian russianliterature sadovskoĭ samuil sources sourceskhodasevich valentinamikhaĭlovna