@article{scalco_amorim_gomes_2012,  title={Eficiência técnica da polícia militar em Minas Gerais},  volume={22},  ISSN={0103-6351},  url={https://doi.org/10.1590/S0103-63512012000100006},  DOI={10.1590/S0103-63512012000100006},  number={1},  journal={Nova Economia},  publisher={Nova Economia},  author={Scalco, Paulo Roberto and Amorim, Airton Lopes and Gomes, Adriano Provezano},  year={2012},  month={Jan},  pages={165–190} }