New explicit critical criterion of Hopf-Hopf bifurcation in a general discrete time system. - Huidong Xu; Guilin Wen; Qixiang Qing; Hua-An Zhou (Commun. Nonlinear Sci. Numer. Simul., 2013)

A photovoltaic array simulator based on current feedback fuzzy PID control. - Wu Shao; Zhi-Qiang Meng; Hua-An Zhou; Kai Zhang (J. Intell. Fuzzy Syst., 2015)