1. E. Infeld and G. Rowlands, Nonlinear Waves, Solitons, and Chaos (Cambridge University Press, Cambridge, 2000).
2. G. P. Agrawal, Nonlinear Fiber Optic (Academic, San Diego, California, United States, 2001).
3. J. Yang, Solitons in Field Theory and Nonlinear Analysis (Springer-Verlag, New York, 2001).
4. Y. S. Kivshar and G. P. Agrawal, Optical Solitons: From Fibers to Photonic Crystals (Academic, San Diego, California, United States, 2003).
5. L. A. Dickey, Soliton Equation and Hamiltonian Systems (World Scientific, New York, 2005). µ*