@article{conagin_1971,  title={Microsporogênese em clones normais e tetraplóides de Hevea brasiliensis Muell.-Arg},  volume={30},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87051971000100002},  DOI={10.1590/S0006-87051971000100002},  number={1},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Conagin, Cândida H. T. M.},  year={1971},  pages={11–17} }