Ferreira, M. A., Silva e Vasques, M. O., Benedicto, G. C. de, Calegário, C. L. L., & Alves e Souza, J. (2018). Analysis of the economic and financial perfor-mance of companies in the Brazilian energy sec-tor: a proposal for grouping. REBRAE, 11(3), 368–386. https://doi.org/10.7213/rebrae.v11i3.24211