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…and K. Wedeward, “Computer Animation of Dynamic Systems in the Classroom,” Computers in Education Journal, VOL. VIII, NO. 1, 1998, pp. 7-13. Watkins and S. Yurkovich, “Parameter Set Estimation Algorithms for Time-Varying Systems,” International Journal of Control, V66, N5, pp. 711-731, 1997. Garcia–Benitez, J. Watkins, and S. Yurkovich, “Nonlinear Control …
https://www.wichita.edu/profiles/academics/engineering/ECE/01_Faculty/Watkins-John.php