@article{ferreira_2009,  title={A Petrobrás e as reformas do setor de petróleo e gás no Brasil e na Argentina},  volume={17},  ISSN={0104-4478},  url={https://doi.org/10.1590/S0104-44782009000200007},  DOI={10.1590/S0104-44782009000200007},  number={33},  journal={Revista de Sociologia e Política},  publisher={Universidade Federal do Paraná},  author={Ferreira, Pablo Gabriel},  year={2009},  month={Jun},  pages={85–96} }