@article{ripamonti_2016,  title={Corwin-Schultz Bid-ask Spread Estimator in the Brazilian Stock Market},  volume={13},  ISSN={1807-7692},  url={https://doi.org/10.1590/1807-7692bar2016150036},  DOI={10.1590/1807-7692bar2016150036},  number={1},  journal={BAR - Brazilian Administration Review},  publisher={ANPAD - Associação Nacional de Pós-Graduação e Pesquisa em Administração},  author={Ripamonti, Alexandre},  year={2016},  month={Jan},  pages={76–97} }