1. Solitons: An Introduction;Drazin,1989
2. Dark optical solitons: Physics and applications;Kivshar;Phys. Rep.,1998
3. Nonlinear Waves, Solitons and Chaos;Infeld,2000
4. Solitons, Nonlinear Evolution Equations and Inverse Scattering;Ablowitz,1991
5. Integrable space-time shifted nonlocal nonlinear equations