1. Solitons Nonlinear Pulses and Beams;Akhmediev,1997
2. Linear and Nonlinear Waves;Whitham,1999
3. Solitons and Inverse Scattering Transform;Ablowitz,1981
4. Theory of Solitons;Novikov,1984
5. Solitons, Nonlinear Evolution Equations and Inverse Scattering;Ablowitz,1991