C. M. Rizzatti-Barbosa, M. N. Gabriotti, L. R. Silva-Concilio, F. A. Joia, C. Machado, and M. C. Ribeiro, “Surface roughness of acrylic resins processed by microwave energy and polished by mechanical and chemical process”, Braz. J. Oral Sci., vol. 5, no. 16, pp. 977–981, Nov. 2015.