Ml. Wang et al., APPLICATION OF A HOMOGENEOUS BALANCE METHOD TO EXACT-SOLUTIONS OF NONLINEAR EQUATIONS IN MATHEMATICAL PHYSICS, Physics letters. A, 216(1-5), 1996, pp. 67-75
The solitary wave solutions of the approximate equations for long wate
r waves, the coupled KdV equations and the dispersive long wave equati
ons in 2 + 1 dimensions are constructed by using a homogeneous balance
method.