Campos, P. H. da S.; Paes, V. de C.; Gonçalves, E. D. de C.; Ferreira, J. R.; Balestrassi, P. P.; Silva, J. P. D. T. da. Optimizing Production in Machining of Hardened Steels Using Response Surface Methodology. Acta Sci. Technol. 2019, 41, e38091.