Letter, K. Mattes->A.P. Ershov, 08.01.1974
Letter, J. E. L. Peck->A.P. Ershov, 08.01.1974
Letter, R. R. Johnson->A.P. Ershov, 18.04.1974
Letter, H. F. Sherwood->A.P. Ershov, 10.10.1973Official invitation to the Conference as an invited speaker
Post card, V. V. Baikov->A.P. Ershov, 10.01.1974
Letter, J. E. L. Peck->A.P. Ershov, 19.02.1974
Post card, W. Feitscher->A.P. Ershov, 03.01.1974
Copy of the telegram, E. Fredkin->A.P. Ershov, 16.01.1974
Letter, M. Nivat->A.P. Ershov, 03.01.1974
Covering letter with attachment, M. Dekker->A.P. Ershov, 18.01.1974
Letter, J. E. L. Peck->o the members of IFIP WG 2.1..., 08.01.1974
Memo, P. Armer->A.P. Ershov, 07.01.1974
Reminder for January, Sh. F. Prutch->A.P. Ershov, 25.01.1974
Letter, T. B. Steel, Jr.->To the members of IFIP TC2, 23.12.1974
Card, 12.02.1974With Compliments.
Telegram, J. McCarthy->A.P. Ershov, 12.02.1974
Letter, H. F. Sherwood->A.P. Ershov, 08.02.1974concerning the meeting with the Italian Academy of Sciences
Letter, R. Uzgalis->A.P. Ershov, 01.02.1974
Invoice, 19.02.1974
Letter, K. W. Kennedy->A.P. Ershov, 07.02.1974
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