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Photograph, 05.05.1983A.Ershov (third from the left) in the presidium of the conference "Theory and practice of school management"; Barnaul, May 1983.
Photograph, 05.05.1983A.Ershov gives a talk "Computers in school education - from ideas to application" at the conference "Theory and practice of school management"; Barnaul, May 1983.
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