Ferreira MA, Silva e Vasques MO, Benedicto GC de, Calegário CLL, Alves e Souza J. Analysis of the economic and financial perfor-mance of companies in the Brazilian energy sec-tor: a proposal for grouping. REBRAE [Internet]. 2018 Aug. 18 [cited 2024 Nov. 23];11(3):368-86. Available from: https://periodicos.pucpr.br/REBRAE/article/view/24211