@article{articlead0085ca,
title   = {Knoop microhardness and FT-Raman evaluation of composite resins: influence of opacity and photoactivation source},
author = {Albino, Luiz Fernando Teixeira and Rodrigues, José Augusto and Kawano, Yoshio and Cassoni, Alessandra},
year = {2011},
doi = {10.1590/s1806-83242011000300013},
journal   = {Brazilian Oral Research}
}