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Archive School Informatics International collaboration in application of computers in education Socialist countries' collaboration in SI Letter

	Letter inviting Bulgarian authors to contribute in collected articles on PC use in school educational process. Date: 21.05.1982 Original document language: russian Authors: Andrei Petrovich Ershov Addressee: Boyan I. Penkov Images of pages: 1 Back Next document (Letter) Previous document (Memorandum)
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