@article{moreira_2009,  title={Validade condicional do equilíbrio na Teoria Geral de Keynes},  volume={29},  ISSN={0101-3157},  url={https://doi.org/10.1590/S0101-31572009000300009},  DOI={10.1590/S0101-31572009000300009},  number={3},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={Moreira, Ricardo Ramalhete},  year={2009},  month={Jul},  pages={153–172} }