N-soliton solutions of the KP equation by Exp-function method. - Shuimeng Yu (Appl. Math. Comput., 2012)

Bi-integrable couplings of a Kaup-Newell type soliton hierarchy and their bi-Hamiltonian structures. - Shuimeng Yu; Yuqin Yao; Shoufeng Shen; Wen-Xiu Ma (Commun. Nonlinear Sci. Numer. Simul., 2015)