1. On the change of form of the long waves advancing in a rectangular canal, and on a new type of stationary waves;Korteweg;Phil Mag,1985
2. Linear and Nonlinear Waves;Whitham,1974
3. Solitons: an Introduction;Drazin,1989
4. Solitons, Nonlinear Evolution Equations and Inverse Scattering;Ablowitz,1991
5. The Direct Method in Soliton Theory;Hirota,2004