@article{shellard_2006,  title={First results from the Pierre Auger Observatory},  volume={36},  ISSN={0103-9733},  url={https://doi.org/10.1590/S0103-97332006000700012},  DOI={10.1590/S0103-97332006000700012},  number={4a},  journal={Brazilian Journal of Physics},  publisher={Sociedade Brasileira de Física},  author={Shellard, Ronald Cintra},  year={2006},  month={Dec},  pages={1184–1193} }