1. (1) M. Araki: “Developments of Parameter-Tuning Methods for PID Controllers”, Institute of System, Control and Information Engineers, Vol. 50, No. 12, pp. 441-446 (2006)
2. (2) T. Yamamoto: “Design of Advanced and Intelligent PID Control Systems”, Institute of System, Control and Information Engineers, Vol. 44, No. 9, pp. 483-491 (2000)
3. (3) N. Suda: “PID control”, Asakura publisher (1992)
4. (4) L. C. Jain: “Industrial Applications of Neural Networks”, The CRC Press (1999)
5. (5) C. H. Dagli: “Artificial neural netwarks for Intelligent Manufacturing”, Chapman Hill (1994)