Approximate soliton solutions for a (2+1)-dimensional Broer-Kaup system by He's methods. - Zheng-Yi Ma (Comput. Math. Appl., 2009)

Novel rogue waves in an inhomogenous nonlinear medium with external potentials. - Xiao-Fei Wu; Guosheng Hu; Zheng-Yi Ma (Commun. Nonlinear Sci. Numer. Simul., 2013)