@article{paiva_1986,  volume={43},  ISSN={0071-1276},  url={https://doi.org/10.1590/S0071-12761986000200025},  DOI={10.1590/S0071-12761986000200025},  number={2},  journal={Anais da Escola Superior de Agricultura Luiz de Queiroz},  publisher={Universidade de São Paulo, Escola Superior de Agricultura},  author={Paiva, Ruy Miller},  year={1986},  pages={811–813} }