@article{carvalho_1993,  title={Liquidez dos haveres financeiros e zeragem automática do mercado},  volume={13},  ISSN={0101-3157},  url={https://doi.org/10.1590/0101-31572000-0628},  DOI={10.1590/0101-31572000-0628},  number={1},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={CARVALHO, CARLOS EDUARDO},  year={1993},  month={Jan},  pages={24–38} }