Exact solutions for the nonlinear Schrödinger equation with variable coefficients using the generalized extended tanh-function, the sine-cosine and the exp-function methods. - Elsayed M. E. Zayed; M. A. M. Abdelaziz (Appl. Math. Comput., 2011)

Traveling Wave Solutions of the Nonlinear (3 + 1)-Dimensional Kadomtsev-Petviashvili Equation Using the Two Variables (G'/G, 1/G)-Expansion Method. - Elsayed M. E. Zayed; S. A. Hoda Ibrahim; M. A. M. Abdelaziz (J. Appl. Math., 2012)