| Letter, Yu. D. Tsvetkov->A.P. Ershov, 27.03.1987 A request to get acquainted with a draft of the information about A.P.Ershov for the issue "SO AN SSSR. Personal'nyi sostav", to correct if necessary and to send the visaed draft to the mentioned address.
Invoice, 02.02.1987on sending listed proceedings of the Institute of Precise Mechanics and Computer Engineering (cash on delivery).
Letter, V.S.Grigoriev->A.P. Ershov, 12.02.1987A request to give materials for a preparation of a report of Research Automation Council of Siberian Branch of the USSR Academy of Sciences for 1986.
Letter with attachment, L. N. Shevrin->A.P. Ershov, 25.02.1987The author tells about plans of holding a symposium on the theory of semigroups. He asks the addressee to participate and to give a talk. A substantiation of a necessity of holding a symposium is attached.
Letter, A. G. Aganbegyan->A.P. Ershov, 03.03.1987The author asks to advice a candidature of the editor for a book on weakly covered aspects of a computerization.
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