1887-1963 1890-1960 1912-1995 20thcentury authors autobiography biography borisleonidovich correspondence criticismandinterpretationpasternak editors englishpasternak friendsandassociatespasternak historical history ivinskai︠a︡ journalists kurt olʹga poets politicalandsocialviewspasternak publishers publishersandpublishing russia russian theformersovietunion translations translationsintoenglishpasternak unitedstates wolff