"Control of an Exoskeleton for Realization of Aquatic Therapy Effects"

K. KONG, H. Moon, D. Jeon, and M. Tomizuka IEEE/ASME Transactions on Mechatronics, vol.15, no.2, pp.191-200, 2010

"Output Saturation in Electric Motor Systems: Identification and Controller Design"

K. KONG, H. C. Kniep, and M. Tomizuka ASME Journal of Dynamic Systems, Measurement, and Control, vol.132, 2010