L. F. J. Schneider, R. R. de Moraes, M. A. C. Sinhoreti, L. C. Sobrinho, and S. Consani, “Temperature rise and Knoop hardness promoted by different light-curing units”, BDS, vol. 11, no. 1, Aug. 2010, doi: 10.14295/bds.2008.v11i1.167.