| Covering letter, R. Strobel->A.P. Ershov, 03.06.1969 to the dissertation and article with a short presentation of an algorithm of compilation.
Letter, J. E. L. Peck->A.P. Ershov, 04.06.1969Invitation to an informal conference on ALGOL 68 to be held in Vancouver.
Letter (hand-written) with attachment, Yu. A. Pervin ->A.P. Ershov, 02.06.1969
Letter with attachment, M. Marois ->A.P. Ershov, 05.06.1969
Registration form, 06.05.1969
Information letter, 22.07.1969
Letter, M. A. Arbib->A.P. Ershov, 24.06.1969
Letter with attachment, A. Wijngaarden, van->A.P. Ershov, 24.06.1969
Information letter with attachment, M. Paul->o the members of IFIP WG 2.1, 25.06.1969
Copy of the letter, H. Zemanek->S. Gill, 19.06.1969
Letter, K. L. Koffeman->A.P. Ershov, 11.06.1969
Letter (hand-written), J. McCarthy->A.P. Ershov, 14.06.1969
Letter, L. B. Smit->A.P. Ershov, 17.06.1969
Telegram, Kees Koster->A.P. Ershov, 22.07.1969
Letter (hand-written), Yu. A. Pervin ->A.P. Ershov, 22.06.1969
Report -outline, 16.06.1969
Letter with attachment, R. Desai ->A.P. Ershov, 08.07.1969
Letter (hand-written), I. O. Kerner->A.P. Ershov, 02.07.1969
Letter, B. J. Mailloux->A.P. Ershov, 09.07.1969
Circular letter, A. Jerman-Blazic->A.P. Ershov, 25.06.1969
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