Answers, A.P. Ershov->Organizing Committee, 18.02.1978 to the questionnaire
Information letter, I. N. Skopin->A.P. Ershov..., 07.06.1984inviting to take part in the regional school "Creating software for the new architecture computer systems"
Letter, Organizing Committee->A.P. Ershov, 16.02.1978Invitation to take part in a discussion on operating systems; participant's questionnaire is enclosed
Letter, I. N. Skopin->A.P. Ershov..., 25.04.1984request to inform of the paper title the Organizing Committee of the regional school
Letter
Photo, 25.06.1984One of participants of the Seminar "Creation of the software for computer systema with new architecture"
Photo, 26.06.1984G.Serdiuk -one of participants of the Seminar "Creation of the software for computer systema with new architecture"
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