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Documents associated with Sergei A. Gurin Letter, A.P. Ershov->S.A. Gurin, 29.04.1986 Thanks for support; about Soviet school computers
Letter, A.P. Ershov->S.A. Gurin, 29.04.1986about the informatics course for ninth grades of a secondary school.
Letter, S.A. Gurin->A.P. Ershov, 28.04.1986Initial order | In alphabetical order | By date Back |
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