IEEE computer society technical council on software engineering.7th international Software metrics symposium(7th :2001 :London):Metrics 2001.IEEE,2001.
IEEE International Conference on Acoustics, Speech, and Signal Prccessing.IEEE International Conference on Acoustics, Speech, and Signal Prccessing Conference Proceedings (1996 : Atlanta, Georgia, USA).IEEE,1996.
Reliability and Maintainability Symposium.Annual Reliability and Maintainability Symposium (1994 : Anaheim, California USA):1994 proceedings.IEEE,1994.
IROS` 92,IEEE/RSJ International Conference on Intelligent Robots and systems.IEEE/RSJ International Conference on Intelligent Robots and systems (1992 : Raleigh).IEEE,1994.