1. Darboux transformations in integrable systems: Theory and their applications to geometry;Gu,2005
2. Introduction to classical integrable systems;Babelon,2003
3. Partial differential equations and solitary waves theory;Wazwaz,2010
4. Wave propagation in nonlinear lattice. I;Wadati;J Phys Soc Japan,1975
5. Wave propagation in nonlinear lattice. II;Wadati;J Phys Soc Japan,1975