Infinitely many weak solutions for a p -Laplacian equation with nonlinear boundary conditions. Zhao, Ji-Hong; Zhao, Pei-Hao — 2007 Electronic Journal of Differential Equations (EJDE) [electronic only]
Existence and global stability of positive periodic solutions of a discrete predator-prey system with delays. Wang, Lin-Lin; Li, Wan-Tong; Zhao, Pei-Hao — 2004 Advances in Difference Equations [electronic only]