@article{articlef9608311,
title   = {Influence of different light-curing units on the surface roughness of restorative materials: in situ study},
author = {Ciccone-Nogueira, Juliane Cristina and Souza-Zaroni, Wanessa Christine de and Chinelatti, Michelle Alexandra and Palma Dibb, Regina Guenka},
year = {2007},
doi = {10.1590/s1516-14392007000300006},
journal   = {Materials Research}
}