@article{costa_carvalho_1960,  volume={19},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87051960000100094},  DOI={10.1590/S0006-87051960000100094},  number={unico},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Costa, A. S. and Carvalho, Ana Maria B.},  year={1960},  pages={CXXXI–CXL} }