Design of a DSP-based discrete variable structure controller with improved robustness. - Nixon C. M. Leung; C. K. Li; P. K. Kung (Microprocess. Microprogramming, 1992)

Optimal design of continuous time irrational filter with a set of fractional order gammatone components via norm relaxed sequential quadratic programming approach. - Xiao-Zhi Zhang; Bingo Wing-Kuen Ling; C. K. Li; Nixon C. M. Leung (Digit. Signal Process., 2017)