1. A new integrable equation with peakon solutions,;A. Degasperis;Theoret. and Math. Phys.,2002
2. Integrable and non-integrable equations with peakons,;A. Degasperis;Nonlinear physics: Theory and experiment,2002
3. An integrable shallow water equation with peaked solitons,;R. Camassa;Phys. Rev. Lett.,1993
4. Solitons in the Camassa-Holm shallow water equation,;F. Cooper;Phys. Lett. A,1994
5. Soliton interactions for the Camassa-Holm equation,;A. Constantin;Exposition. Math.,1997