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Item 3. (Name does not exist in this language.)
Letter
Envelope
Envelope
Article
Plan
Main Results
Information Form (1985)
Letter, G. S. Pospelov->A.P. Ershov, 13.04.1979
Letter, E. Z. Lyubimsky->A.P. Ershov, 04.07.1979
Proposal, V. A. Andrunakievich->A.P. Ershov, 11.09.1979
Covering Letter, D. V. Gitsu->A.P. Ershov, 14.09.1979
Covering Letter, A. S. Dmitriev->A.P. Ershov, 14.09.1979
Covering Letter, S. V. Vonsovky->A.P. Ershov, 20.09.1979
Proposals, 20.09.1979
Proposal, 25.09.1979
Covering Letter, K/ Rebane->A.P. Ershov, 15.10.1979
Proposals, 15.10.1979
Commentary, 26.10.1979
Letter, B. N. Petrov->A.P. Ershov, 15.11.1979
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