@article{yasuda_melo_2005,  title={A new method to determine open porosity and permeability constants of open-pore sintered glasses by photoacoustic technique},  volume={51},  ISSN={0366-6913},  url={https://doi.org/10.1590/S0366-69132005000300013},  DOI={10.1590/S0366-69132005000300013},  number={319},  journal={Cerâmica},  publisher={Associação Brasileira de Cerâmica},  author={Yasuda, M. T. and Melo, W. L. B.},  year={2005},  month={Jul},  pages={259–264} }