Barboza, Caio César, and Sérgio Rangel Fernandes Figueira. “An Analysis of the Concentration of BNDES Credit to Brazilian Sugar and Ethanol Companies Between 2002 and 2018”. Economia E Sociedade, vol. 30, no. 1, May 2021, pp. 141-6, https://periodicos.sbu.unicamp.br/ojs/index.php/ecos/article/view/8665612.