@inproceedings{alina2015elastic,
title={Elastic collisions among peakon solutions for the Camassa-Holm equation},
author={Alina Chertock, Jian-Guo Liu, and Terrance Pendleton},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207233846873270276},
booktitle={Applied Numerical Mathematics},
volume={93},
pages={30–46},
year={2015},
}

Alina Chertock, Jian-Guo Liu, and Terrance Pendleton. Elastic collisions among peakon solutions for the Camassa-Holm equation. 2015. Vol. 93. In Applied Numerical Mathematics. pp.30–46. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20170207233846873270276.