1. Alber M.S., Camassa R., Fedorov Y.N., Holm D.D. and Marsden J.E., The complex geometry of weak piecewise smooth solutions of integrable nonlinear PDE’s of shallow water and Dym type.Commun. Math. Phys.221(2001) 197–227.
2. Artebrant R. and Schroll H.J., Numerical simulation of Camassa-Holm peakons by adaptive upwinding.Appl. Numer. Math.56(2006) 695–711.
3. Beals R., Sattinger D.H. and Szmigielski J., Peakon-antipeakon interaction.J. Nonlin. Math. Phys.8(2001) 23–27; Nonlinear evolution equations and dynamical systems, Kolimbary (1999).
4. Camassa R. and Holm D.D., An integrable shallow water equation with peaked solitons.Phys. Rev. Lett.71(1993) 1661–1664.
5. Camassa R., Holm D.D. and Hyman J.M., A new integrable shallow water equation.Adv. Appl. Mech.31(1994) 1–33.