@article{villa_2017,  title={Brazilian Hybrid Security in South America},  volume={60},  ISSN={0034-7329},  url={https://doi.org/10.1590/0034-7329201700203},  DOI={10.1590/0034-7329201700203},  number={2},  journal={Revista Brasileira de Política Internacional},  publisher={Centro de Estudos Globais da Universidade de Brasília},  author={Villa, Rafael Duarte},  year={2017},  pages={e003} }