Media Interview, 27.03.1974
Letter, Yu. V. Tyurin->A.P. Ershov, 21.11.1983
Media Interview, 05.12.1983
List, 12.04.1984
Questions, K. E. Levitin->A.P. Ershov, 22.07.1985Levitin's questions to Ershov for his interview (with Ershov's remarks)
Covering letter, K. E. Levitin->A.P. Ershov, 12.09.1985to three articles by the author with the request to make corrections
Interview, 12.09.1985by K.Levitim "Three questions to academician Ershov"; "Znanie-sila", 1986, ¹1
Covering letter, 19.09.1985and transcript of the talk with academician Ershov for "Smena" magazine 1985, ¹17
Interview, 22.09.1985initial title: "Activity path"; final title: "Computer at school", "Nedelya" weekly newspaper, ¹38, 1985
Letter, A.P. Ershov->K. E. Levitin, 05.10.1985in reply to the letter of 12.09.85
Copy of the article, 11.11.1985
Journal, 11.11.1985Business Week with Ershov's interview
Questions, 21.01.1986for Ershov's talk with "Izvestiya" newspaper reporter
Media Interview, 06.11.1987
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