| Card, 27.10.1987 The BSSR State Library asks to send collected articles of Computer Center of SB AS USSR "Prikladnye metody informatiki" cash on delivery.
Covering letter, A.P. Ershov->Unknown addressee, 20.05.1987
Covering letter, A.P. Ershov->B. N. Naumov, 12.06.1987
Covering letter, D. I. Shapiro->A.P. Ershov, 22.07.1987
Decision, 09.07.1987
Direction (project), 16.05.1987
Information letter, 10.03.1988
Information letter, 10.03.1988
Invitation, 30.03.1988
Letter, P. N. Fedoseev->A.P. Ershov, 12.05.1988
Letter, S. A. Papert->A.P. Ershov, 22.06.1988
Letter, K.V. Frolov->M. Wiener, 01.02.1988
Letter, A.P. Ershov->L. G. Khomenko, 04.12.1987
Letter, A.P. Ershov->A. V. Kortnev, 13.10.1987
Letter, A.P. Ershov->G. I. Marchuk..., 23.03.1988
Letter, I. M. Gelfand->A.P. Ershov, 20.04.1987
Letter, A. V. Kortnev->A.P. Ershov, 17.12.1987
Letter, G. M. Barenboim->A.P. Ershov, 21.09.1987
Letter, A.P. Ershov->, 21.09.1987
Letter, V. V. Korchagin->A.P. Ershov, 18.09.1987
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