@article{martinelli_pires-de-souza_casemiro_tirapelli_panzer_2006,  title={Abrasion resistance of composites polymerized by light-emitting diodes (LED) and halogen light-curing units},  volume={17},  ISSN={0103-6440},  url={https://doi.org/10.1590/S0103-64402006000100007},  DOI={10.1590/S0103-64402006000100007},  number={1},  journal={Brazilian Dental Journal},  publisher={Fundação Odontológica de Ribeirão Preto},  author={Martinelli, Janisse and Pires-de-Souza, Fernanda de Carvalho Panzeri and Casemiro, Luciana Assirati and Tirapelli, Camila and Panzer, Heitor},  year={2006},  pages={29–33} }