@article{volzone_cesio_2004,  title={Fired products of Cr-smectite clays in nitrogen},  volume={21},  ISSN={0104-6632},  url={https://doi.org/10.1590/S0104-66322004000400008},  DOI={10.1590/S0104-66322004000400008},  number={4},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Volzone, C. and Cesio, A. M.},  year={2004},  month={Oct},  pages={593–599} }