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3. A. Ya. Savel’ev, V. A. Novikov, and Yu. I. Lobanov,Preparing Data for an automated teaching system [in Russian], Moscow (1986).
4. E. I. Mashbits,Computerization of Instruction: Problems and Prospects [in Russian], Moscow (1986).
5. B. S. Gershunskii,Computerization in Education: Problems and Prospects [in Russian], Moscow (1987).