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… Applied Mathematics Journal on Algebraic and Discrete Methods, vol.6 , no.2, April 1985, pp. 341-344. Fu, S.J. and M.E. Sawan, "Trajectory Sensitivity Analysis: A New Criterion", International Journal of Systems Science, vol.16, no.6, June 1985, pp. 769-776. Oloomi, H. and M.E. Sawan, "Observer-Based Controllers for Sampled-Data Singularly Perturbed…
https://www.wichita.edu/profiles/academics/engineering/ECE/02_Emeritus/Sawan-M.php