Letter, A. V. Petrova->A.P. Ershov, 05.04.1974
Letter (hand-written), V. L. Temov->A.P. Ershov, 10.04.1974asking Ershov to be the official opponent of the author's dissertation
Letter (hand-written), A. S. Popov->A.P. Ershov, 05.04.1974
Letter, E. L. Yuschenko->A.P. Ershov, 12.03.1974
Covering letter, V. I. Gritsenko->A.P. Ershov, 26.03.1974
Letter, I. S. Ladenko->A.P. Ershov, 08.04.1974
Information, E. V. Khanina->A.P. Ershov, 03.04.1974
Letter with attachment, R. Abaidullin->A.P. Ershov, 02.04.1974
Letter, S. S. Maschan->A.P. Ershov, 02.04.1974
Letter, N. S. Furs->A.P. Ershov, 27.03.1974
Letter, N. P. Trifonov->A.P. Ershov, 18.03.1974Detailed information about an All-Union School "Computer operationg Systems" planned for October 1974; the Organizing Committee's proposal to Ershov to be among the speakers
Letter, I. S. Ladenko->A.P. Ershov, 22.03.1974
Notification, 20.03.1974
Letter, Yu.D. Shmyglevsky->A.P. Ershov, 28.02.1974
Letter, V.P. Gorenburg->A.P. Ershov, 25.02.1974
Telegram, D. Kveselava->A.P. Ershov, 12.02.1974
Letter (hand-written), R.B. Kukhar->A.P. Ershov, 14.02.1974
Notification, M. G. Tsuladze->A.P. Ershov, 11.02.1974
Covering letter, G. G. Ryabov->A.P. Ershov, 22.01.1974
Telegram, D.A. Pipko->A.P. Ershov, 07.01.1974
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