@article{perdigão_martins_vieira junior_sartori_niehues_arrigoni_2020,  title={Identification of the production system of beef cattle by the stable isotope analysis},  volume={55},  ISSN={0100-204X},  url={https://doi.org/10.1590/S1678-3921.pab2020.v55.01501},  DOI={10.1590/S1678-3921.pab2020.v55.01501},  journal={Pesquisa Agropecuária Brasileira},  publisher={Embrapa Secretaria de Pesquisa e Desenvolvimento; Pesquisa Agropecuária Brasileira},  author={Perdigão, Alexandre and Martins, Cyntia Ludovico and Vieira Junior, Luiz Carlos and Sartori, Maria Márcia Pereira and Niehues, Maria Betânia and Arrigoni, Mário De Beni},  year={2020},  pages={e01501} }