@article{viégas_1945,  volume={5},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87051945001200001},  DOI={10.1590/S0006-87051945001200001},  number={12},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Viégas, A. P.},  year={1945},  pages={717–779} }