The Cayley graphs of prime-square order which are Cayley invariant. - Zhengyu Gu; Cai Heng Li (Australas. J Comb., 1998)

A nonabelian CI-group. - Zhengyu Gu; Cai Heng Li (Australas. J Comb., 1998)

Characterization of Single-Electron Tunneling Transistors for Designing Low-Power Embedded Systems. - Changyun Zhu; Zhengyu Gu; Robert P. Dick; Li Shang; Robert G. Knobel (IEEE Trans. Very Large Scale Integr. Syst., 2009)