Asymptotic behavior of solutions of delay logistic differential equation with negative instantaneously terms. - Xiaoping Wang; Liusheng Liao (Appl. Math. Comput., 2004)

Oscillation for even-order delay difference equations with unstable type. - Xiaoping Wang; Liusheng Liao (Appl. Math. Comput., 2004)

On the asymptotic behavior of solutions of a nonlinear difference-differential equation. - Xiaoping Wang; Liusheng Liao (Appl. Math. Lett., 2005)