Covering letter, J. T. Schwartz->A.P. Ershov, 07.01.1970
Letter, 17.01.1970
Letter, J. N. Merner->o the members of IFIP WG 2.1, 12.01.1970
Letter, F. L. Bauer ->A.P. Ershov, 28.10.1970Account of the talk with Acad. A.Dorodnitsyn about Ershov's work at the ACta Informatica editorial board
Letter with attachment, K. Samelson->A.P. Ershov, 14.01.1970
Letter, M. Marois ->A.P. Ershov, 14.01.1970
Stock issue form, 15.01.1970
Letter, 19.01.1970
Telegram, Unknown Author->A.P. Ershov, 08.02.1970
Letter, E. Engeler->A.P. Ershov, 12.01.1970
Letter, F. L. Bauer ->A.P. Ershov, 23.01.1970
Letter, J. Limondin->A.P. Ershov, 21.01.1970
Information letter, 12.01.1970
Covering letter, R. A. Farrand ->A.P. Ershov, 20.01.1970
Post card, 02.02.1970
Letter, S. Gill->A.P. Ershov, 02.02.1970
Note, J. McCarthy->A.P. Ershov, 12.01.1970
Information letter, A. Endres->A.P. Ershov, 26.01.1970
Letter, F. H. Raymond ->A.P. Ershov, 02.02.1970
Covering card and poem, J. G. Laski->A.P. Ershov, 12.02.1970
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