| Letter, J. B. Morris, Jr->A.P. Ershov, 12.12.1978 "Computing Surveys" editor suggests to submitt a paper in the special issue on future directions in programming language research.
Letter, D. Tsichritzis->A.P. Ershov, 22.03.1978
Letter, P. Brinch-Hansen->A.P. Ershov, 01.04.1978
Letter, M. M. Lehman->A.P. Ershov, 13.01.1977
Short letter, Unknown Author->A.P. Ershov, 24.01.1978(?)
Item 125. (Name does not exist in this language.)
Letter (hand-written) and a Cover, S. Horvath->A.P. Ershov, 06.05.1978
Post card, 23.01.1978
Letter, K. W. Kennedy->A.P. Ershov, 30.01.1978
Information, H. Maurer->A.P. Ershov, 20.02.1978
Letter (hand-written), R. Tschirschwitz->A.P. Ershov, 14.07.1978
Letter, W. A. Wulf->A.P. Ershov, 06.03.1978
Item 132. (Name does not exist in this language.)
Item 133. (Name does not exist in this language.)
Letter, T. Ito->A.P. Ershov, 16.10.1978
Letter, R. Pogonovsky->A.P. Ershov, 09.03.1978
Item 136. (Name does not exist in this language.)
Letter, A. Peters->A.P. Ershov, 25.11.1978
Letter, R. D. Schmidt->A.P. Ershov, 27.04.1978
Letter, D. Bjorner->A.P. Ershov, 02.05.1978
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