@article{barreto_coutinho_borges_2008,  title={Neutral bilepton boson production in pp collisions from 3-3-1 model},  volume={38},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332008000400022},  DOI={10.1590/S0103-97332008000400022},  number={3b},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Barreto, E. Ramirez and Coutinho, Y. A. and Borges, J. Sá},  year={2008},  month={Sep},  pages={495–498} }