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2. Self-Tuning and Adaptive Control: Theory and Application;Harris,1981
3. Hon, K. K. and Razavi, E. S. 1987, A Contribution to the Monitoring and Control of EDM Based on High Frequency Methods, Proceedings of 15th NAMRC, pp. 413-417.
4. EDM-Future Steps Towards the Machining of Ceramics;König;Annals of the CIRP,1988
5. Adaptive Control-the Model Reference Approach;Landau,1979