@article{stevens_1951,  title={Experiências de rotação},  volume={11},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87051951000400008},  DOI={10.1590/S0006-87051951000400008},  number={10-12},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Stevens, W. L.},  year={1951},  month={Oct},  pages={317–330} }