@article{oliveira_batalha_pettan_2017,  title={Comparative assessment of the food purchase program and the national school feeding program's impact in Ubá, Minas Gerais, Brazil},  volume={47},  ISSN={0103-8478},  url={https://doi.org/10.1590/0103-8478cr20160395},  DOI={10.1590/0103-8478cr20160395},  number={1},  journal={Ciência Rural},  publisher={Universidade Federal de Santa Maria},  author={Oliveira, Leandro Gomes de and Batalha, Mário Otávio and Pettan, Kleber Batista},  year={2017},  pages={e20160395} }