@article{baumann_2010,  title={Brazilian external sector so far in the 21st century},  volume={53},  ISSN={0034-7329},  url={https://doi.org/10.1590/S0034-73292010000300003},  DOI={10.1590/S0034-73292010000300003},  number={spe},  journal={Revista Brasileira de Política Internacional},  publisher={Centro de Estudos Globais da Universidade de Brasília},  author={Baumann, Renato},  year={2010},  month={Dec},  pages={33–53} }