1. Theory of Solitons, The Inverse Scattering Methods;Novikov,1984
2. Solitons in Mathematics and Physics;Newell,1985
3. Solitons, Nonlinear Evolution Equations and Inverse Scattering;Ablowitz,1991
4. Darboux Transformations and Solitons;Matveev,1991
5. Algebro-Geometric Approach to Nonlinear Integrable Equations;Belokolos,1994