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Participation in the SBAS Presidium activities
Decisions
General Meetings of SB ASResolutions, invitations
SB AS documents
Letter, V. L. Makarov->A.P. Ershov, 25.10.1982
Letter, G. I. Marchuk->A.P. Ershov, 22.04.1971(?)
List, 17.06.1978
Letter, 27.06.1986
Letter, I. I. Scheglov->A.P. Ershov, 19.01.1972
Agenda, 10.11.1977
Invitation, 01.11.1977(?)
Letter, 13.09.1977
Plan, 04.04.1972
Letter, N. T. Bozhko->I. I. Scheglov, 29.12.1971
Letter, A. K. Romanov->A.P. Ershov, 03.05.1972
Letter, V. T. Dementiev->A.P. Ershov, 30.04.1977(?)
Project, 05.05.1977(?)
Note, 08.12.1972
Invitation, I. I. Geitsi ->A.P. Ershov, 09.01.1972
Letter, Yu, E. Nesterikhin->A.P. Ershov, 28.03.1977
Telephone Message, 03.12.1976(?)
Letter, I. I. Scheglov->A.P. Ershov, 16.01.1974
Letter, 03.11.1975
List, 27.03.1975
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