wichita.edu
…Approach,” Transactions of The Institute of Control, Automation, and Systems Engineers (ICASE), Korea, vol. 3, No. 4, pp. 242-249, December 2001. Shim, K. H. and M. E. Sawan, “Near-Optimal State Feedback Design for Singularly Perturbed Systems by Unified Approach using Delta Operators,” International Journal of Systems Science, vol. 33, No. 3, pp.…
https://www.wichita.edu/profiles/academics/engineering/ECE/02_Emeritus/Sawan-M.php