@article{carvalho_durães_luna_2007,  title={Gluon saturation and proton: anti-proton cross sections},  volume={37},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332007000100032},  DOI={10.1590/S0103-97332007000100032},  number={1a},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Carvalho, F. and Durães, F.O. and Luna, E.G.S.},  year={2007},  month={Mar},  pages={110–113} }