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Item, 15.09.1987
Brochure, 22.10.1987
Working Notes
Decision, 02.10.1987
Information, 08.10.1987
Decision, E. P. Velikhov->A.P. Ershov, 09.10.1987
Note, 14.10.1987
Decision, 01.10.1987
Journal, 01.11.1987(?)
Letter, 20.11.1987
List, 10.12.1987
Invitation, G. I. Marchuk->A.P. Ershov, 02.12.1987
Invitation, V. P. Breev->A.P. Ershov, 11.12.1987
Invitation Card, 10.12.1987
Note
List, 22.12.1987
List, 22.12.1987
List, 22.12.1987
List, 22.12.1987
Invitation, 22.12.1987
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