Letter, L. D. Earnest->A.P. Ershov, 31.03.1967
Letter, H. Zemanek->A.P. Ershov, 30.03.1967
Letter, H. Zemanek->A.P. Ershov, 30.03.1967
Letter, P. Tellefsen->A.P. Ershov, 05.04.1967
Copy of the letter, P. J. Landin->W. L. van der Poel, 05.04.1967received by Ershov as a member of the IFIP WG2.1. The author requests to specify some points of the Amsterdam meeting Draft Agenda, especially those concerning the informal discussion on Algol Y
Letter, G. Letellier->A.P. Ershov, 11.04.1967
Letter, J. T. Schwartz->A.P. Ershov, 10.04.1967
Letter, H. L. Dreyfus->A.P. Ershov, 16.04.1967The author is glad that his paper has roused interest in Ershov and his colleagues and will be published in "Voprosy filosofii" journal; asks for remarks and comments; hopes to meet Ershov in the US
Copy of the letter, B. Randell->W. L. van der Poel, 13.04.1967received by Ershov as a member of the IFIP WG2.1. Discussed is the Amsterdam meeting Draft Agenda in view of the letter of April 13
Letter, J. Minker->A.P. Ershov, 14.04.1967
Letter, J. T. Schwartz->A.P. Ershov, 14.04.1967
Copy of the letter, M. Woodger ->P. J. Landin, 20.04.1967
Letter, G. E. Forsythe->A.P. Ershov, 28.12.1967Christmas account of the last two years with P.S. about recent meeting with G.I. Marchuk
Letter, 18.04.1967
Post card, R. N. Kaltinska->A.P. Ershov, 06.04.1967
Post card, R. E. Doyle->A.P. Ershov, 26.04.1967
Covering letter, W. L. van der Poel->A.P. Ershov, 24.04.1967
Letter, H. Zemanek->A.P. Ershov, 21.04.1967
Copy of the letter, H. Bekic->A.P. Ershov, 21.04.1967
Letter, A. C. Oettinger->A.P. Ershov, 25.04.1967
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