D. B. Barbosa, R. F. de Souza, A. C. Pero, J. Marra, and M. A. Compagnoni, “ Flexural strength of acrylic resins polymerized by different cycles ”, J Appl Oral Sci, vol. 15, no. 5, pp. 424–428, Oct. 2007, doi: 10.1590/S1678-77572007000500010.