@inproceedings{timothy2005a,
title={A numerical study of the light bullets interaction in the (2+ 1) sine-Gordon equation},
author={Timothy Povich, and Jack Xin},
url={http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224210458184081455},
booktitle={Journal of Nonlinear Science},
volume={15},
number={1},
pages={11-25},
year={2005},
}
Timothy Povich, and Jack Xin. A numerical study of the light bullets interaction in the (2+ 1) sine-Gordon equation. 2005. Vol. 15. In Journal of Nonlinear Science. pp.11-25. http://archive.ymsc.tsinghua.edu.cn/pacm_paperurl/20191224210458184081455.