Letter, A.P. Ershov->R. Goodman, 18.08.1964
Letter, A.P. Ershov->D. Waida, 18.08.1964
Letter, A.P. Ershov->E. A. Feigenbaum, 18.08.1964
Letter, A.P. Ershov->M. A. Arbib, 18.08.1964
Letter, A.P. Ershov->A. P. Speiser, 18.08.1964
Letter, A.P. Ershov->N. Zvegintzov, 20.08.1964
Letter, A.P. Ershov->I. L. Auerbach, 24.08.1964
Covering letter, A.P. Ershov->H. Zemanek, 24.08.1964
Letter, A.P. Ershov->F. L. Bauer, 24.08.1964
Telegram (hand-written), A.P. Ershov->H. Zemanek, 24.08.1964
Letter, A.P. Ershov->E. A. Feigenbaum, 29.08.1964
Letter with attachment, A.P. Ershov->A. J. Lohwater, 09.09.1964
Letter, A.P. Ershov->M. A. Arbib, 23.09.1964The author is sorry that his visit to Baden was cancelled and they could not meet; he has doubts that it will be possible to obtain permission for the addressee's visit to Novosibirsk on a short notice, but promices to do all that he can
Letter, A.P. Ershov->M. Woodger, 23.09.1964Ershov is very sorry that his trip to Baden was canceled but hopes that it will bear no influence on his ability to participate in the IFIP Congress; states his point of view on some organizational questions
Letter, A.P. Ershov->K. Samelson, 24.09.1964
Letter, A.P. Ershov->H. Zemanek, 24.09.1964Ershov is very sorry that his trip to Baden was cancelled. He hopes that it has no connection to the Academy of Sciences' attitude towards cooperation with the IFIP agencies, but nevertheless requests to write a letter to Academicians Dorodnitsyn and Keldysh
Letter, A.P. Ershov->N. Gastinel, 25.09.1964
Letter, 26.09.1964
Letter, A.P. Ershov->F. G. Duncan, 28.09.1964
Telegram (hand-written), A.P. Ershov->J. D. Babcock, 03.10.1964
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