@article{xu_2007,  title={Partonic equation of state in relativistic heavy ion collisions},  volume={37},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332007000500024},  DOI={10.1590/S0103-97332007000500024},  number={2c},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Xu, N.},  year={2007},  month={Jun},  pages={773–775} }