Item 11. (Name does not exist in this language.)
Covering letter with attachment, G. I. Marchuk->M. A. Lavrentiev, 03.08.1967informing of sending forward Ershov's foreign trip file for his prospecive visit to Mexico. Enclosed are the trip justification and directives
Directions, S. L. Sobolev->A.P. Ershov, 01.02.1962
Information, 01.03.1976about international conference on Algol 68
Instructions, S. L. Sobolev->A.P. Ershov, 01.02.1962to A.P. Ershov for participation in the 2nd IFIP Congress
Jastification and Directions, 01.06.1964(?)
Justification, 06.05.1963of the trip to Italy for reading lectures and studying works in the theory of programming
Justification and Directions, 02.01.1964(?)
Letter, S. L. Sobolev->M. A. Lavrentiev, 01.02.1962
Letter, 31.07.1970Request to exclude from the Soviet delegation to the Symposium on large systems (Warsaw, August 14-20, 1970)A.Ershov, who can not go due to the family matters
Letter, G. I. Marchuk->M. A. Lavrentiev, 20.09.1971
Letter (translation), J. T. Schwartz->A.P. Ershov, 20.01.1976Invitation to visit the Institute during Ershov's stay in New York
Letter with attachment, G. I. Marchuk->M. A. Lavrentiev, 27.04.1968
Letter with attachment, G. I. Marchuk->M. A. Lavrentiev, 15.05.1969
Letter with attachment, N. I. Belyaev->I. I. Nedlin, 24.02.1975Informing of receiving the invitation to Ershov to visit USA as part of the inter-academy exchange program; the invitation is enclosed
Official trip documents, 07.05.1971
Programof A.Ershov's visit to England
Program, 13.02.1960of A.Ershov's and Ju. Cherevychnik's visit to Poland
Program, 03.03.1962of A.Ershov's visit to the USA
Program, 10.04.1962of A.Ershov's visit to the USA
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