Chen Peng; Wang Zhengmei: Infinitely many homoclinic solutions for a class of nonlinear difference equations. (2012)
He Xiaofei; Chen Peng: Existence of solutions for a class of second-order sublinear and linear Hamiltonian systems with impulsive effects. (2011)
Chen Peng; Xiao Li: Existence of homoclinic orbit for second-order nonlinear difference equation. (2010)