@article{medina_1963,  title={Microsporogênese em um híbrido tri-plóide de Coffea racemosa lour. x C. arábica L.},  volume={22},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87051963000100024},  DOI={10.1590/S0006-87051963000100024},  number={unico},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Medina, Dixier M.},  year={1963},  pages={299–318} }