@article{mendonça_silva_2004,  title={Moeda única no Mercosul},  volume={24},  ISSN={0101-3157},  url={https://doi.org/10.1590/0101-31572004-1631},  DOI={10.1590/0101-31572004-1631},  number={1},  journal={Brazilian Journal of Political Economy},  publisher={Centro de Economia Política},  author={MENDONÇA, HELDER FERREIRA DE and SILVA, ANABEL DA},  year={2004},  month={Jan},  pages={121–136} }