Classification and approximate solutions to perturbed diffusion-convection equations. - Zhi-Yong Zhang; Xue-Lin Yong; Yu-Fu Chen (Appl. Math. Comput., 2012)

Comparison of approximate symmetry and approximate homotopy symmetry to the Cahn-Hilliard equation. - Zhi-Yong Zhang; Xue-Lin Yong; Yu-Fu Chen (J. Comput. Appl. Math., 2013)