@article{souza_sá_2000,  title={Tests on the geopotential model EGM96 in São Paulo State Region},  volume={72},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652000000200017},  DOI={10.1590/S0001-37652000000200017},  number={2},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={Souza, Sérgio F. and Sá, Nelsi C. de},  year={2000},  month={Jun},  pages={291–291} }