Letter Thanks for the received articles and for the author's intent to translate into English Ershov's paper on man-machine interaction; request to send several copies of of the translation for Ershov's english-speaking colleagues; linguistic discourse on the use of the verb "to give" in Russian language Date: 06.06.1964 Original document language: russian Authors: Andrei Petrovich Ershov Persons: Edward A. Feigenbaum Addressee: Nicolas Zvegintzov