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Invitation card, 22.02.1971-23.02.1971
Invitation card, 05.05.1971
Invitation card, 26.02.1972
Invitation card, 22.02.1973-23.02.1973
Invitation card, 25.02.1974-23.02.1974
Invitation Card, Organizing Committee->A.P. Ershov, 30.11.1982
Presentation
Presentation
Presentation
Decision, 26.02.1974
Invitation card, 25.02.1975-26.02.1975
Decision, 24.12.1975
Decision, 24.12.1975
Decision, I. I. Geitsi ->A.P. Ershov..., 24.12.1975
Invitation card, 17.02.1976-18.02.1976
Information, 17.02.1975-18.02.1975
Records, 20.11.1972-30.11.1972
Decision, 18.02.1976
Presentations
Invitation card, 12.04.1976
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2
3
Initial order | In alphabetical order | By date |
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