@article{amadeo_bastos_1992,  title={Malthus e Ricardo sobre a determinação da taxa de lucro},  volume={12},  ISSN={0101-3157},  url={https://doi.org/10.1590/0101-31571992-0642},  DOI={10.1590/0101-31571992-0642},  number={1},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={AMADEO, EDWARD J. and BASTOS, ESTEVÃO K. X.},  year={1992},  month={Jan},  pages={49–58} }