@article{souza_rocha_roso_pötter_rosa_ilha_confortin_2012,  title={Productivity and reproductive performance of grazing beef heifers bred at 18 months of age},  volume={41},  ISSN={1516-3598},  url={https://doi.org/10.1590/S1516-35982012000200011},  DOI={10.1590/S1516-35982012000200011},  number={2},  journal={Revista Brasileira de Zootecnia},  publisher={Sociedade Brasileira de Zootecnia},  author={Souza, Alexandre Nunes Motta de and Rocha, Marta Gomes da and Roso, Dalton and Pötter, Luciana and Rosa, Aline Tatiane Nunes da and Ilha, Gustavo Freitas and Confortin, Anna Carolina Cerato},  year={2012},  month={Feb},  pages={306–313} }