Archive
The USSR Academy of Sciences
General Meetings of the Academy of Sciences and its Mathematics Division
1976-1978
Invitation, 23.12.1976-24.12.1976
Invitation card, 28.02.1977-01.03.1977
Invitation card, 15.03.1976-16.03.1976
Manuscript Items, 01.03.1978
Invitation, 06.12.1978-07.12.1978
Invitation card, 14.11.1977
Invitation card, 20.12.1976-21.12.1976
Invitation card, 27.02.1978-28.02.1978
Invitation, 01.03.1978-02.03.1978
Invitation card, 05.12.1978

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