@article{bongiolo_bongiolo_sardini_mexias_siitari-kauppi_gomes_formoso_2007,  title={Quantification of porosity evolution from unaltered to propylitic-altered granites: the 14C-PMMA method applied on the hydrothermal system of Lavras do Sul, Brazil},  volume={79},  ISSN={0001-3765},  url={https://doi.org/10.1590/S0001-37652007000300011},  DOI={10.1590/S0001-37652007000300011},  number={3},  journal={Anais da Academia Brasileira de Ciências},  publisher={Academia Brasileira de Ciências},  author={Bongiolo, Everton M. and Bongiolo, Daniela E. and Sardini, Paul and Mexias, André S. and Siitari-Kauppi, Marja and Gomes, Márcia E.B. and Formoso, Milton L.L.},  year={2007},  month={Sep},  pages={503–517} }