@article{barbosa_2008,  title={Banco Nacional: jogo de Ponzi, PROER e FCVS},  volume={28},  ISSN={0101-3157},  url={https://doi.org/10.1590/S0101-31572008000100005},  DOI={10.1590/S0101-31572008000100005},  number={1},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={Barbosa, Fernando de Holanda},  year={2008},  month={Jan},  pages={97–115} }