Proceedings Joint 9th IFSA World Congress and 20th NAFIPS International Conference (Cat. No. 01TH8569) Fuzzy systems and fuzzy information processing IFSA World Congress and 20th NAFIPS International Conference, 2001. Joint 9th. :2556-2561 vol.5 2001
2001 Power Engineering Society Summer Meeting. Conference Proceedings (Cat. No.01CH37262) Power engineering society summer meeting Power Engineering Society Summer Meeting, 2001. 2:1058-1062 vol.2 2001