@article{versiani_2007,  title={Escravidão "suave" no Brasil: Gilberto Freyre tinha razão?},  volume={27},  ISSN={0101-3157},  url={https://doi.org/10.1590/S0101-31572007000200001},  DOI={10.1590/S0101-31572007000200001},  number={2},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={Versiani, Flávio Rabelo},  year={2007},  month={Apr},  pages={163–183} }