@article{tornavoi_satoa_silva_agnelli_reis_2012,  title={Analysis of surface hardness of artificially aged resin composites},  volume={15},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392012005000001},  DOI={10.1590/S1516-14392012005000001},  number={1},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Tornavoi, Denise Cremonezzi and Satoa, Sandra and Silva, Leandro Jardel and Agnelli, José Augusto M. and Reis, Andréa Cândido dos},  year={2012},  month={Jan},  pages={9–14} }