@article{amaral_betemps_gay ducati_soyez_2007,  title={BK equation and traveling wave solutions},  volume={37},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332007000400032},  DOI={10.1590/S0103-97332007000400032},  number={2b},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Amaral, J. T. de Santana and Betemps, M. A. and Gay Ducati, M. B. and Soyez, G.},  year={2007},  month={Jul},  pages={648–651} }