Letter in reply to the letter of 09.04.1976: asking the addressee's opinion on his own hypothesis of 12 years ago concerning the "Viking" automation; account of the current working and domestic affairs, and Ershov's literary work Date: 26.07.1976 Original document language: russian Authors: Andrei Petrovich Ershov Persons: Nina Mikhailovna Ershova (Stepanova) Addressee: John McCarthy
