MONTORO JÚNIOR, W.; TEIXEIRA, A. Measuring Cost Efficiency in the Brazilian Electricity Distribution Sector. Brazilian Business Review, [S. l.], v. 1, n. 1, p. 63–73, 2004. DOI: 10.15728/bbr.2004.1.1.5. Disponível em: http://bbronline.com.br/index.php/bbr/article/view/492. Acesso em: 13 apr. 2021.