Archive
Scientific foreign trips
Scientific trip to Poland (1983)
Arrangements for the Trip
Information, 20.12.1982
Letter, I.M. Vinogradov->A. S. Alekseev, 20.12.1982
Letter, S. M. Nikol'sky->A.P. Ershov, 20.12.1982
Rules, 16.02.1983

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