@article{gramani_2006,  volume={59},  ISSN={0370-4467},  url={https://doi.org/10.1590/S0370-44672006000300002},  DOI={10.1590/S0370-44672006000300002},  number={3},  journal={Rem: Revista Escola de Minas},  publisher={Escola de Minas},  author={Gramani, Arnaldo de Carvalho},  year={2006},  month={Jul},  pages={255–264} }