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…vol. LNAI 3397, pp. 24-32, February 2005. Shim, K. H. and M. E. Sawan, “Approximate Controller Design for Singularly Perturbed Aircraft System,” Aircraft Engineering and Aerospace Technology, vol. 77, No.4, pp. 311-316, July 2005. Shao, Z. and M. E. Sawan, “Stabilization of Uncertain Singularly Perturbed Systems,” IEE Proceedings on Control Theory &…
https://www.wichita.edu/profiles/academics/engineering/ECE/02_Emeritus/Sawan-M.php