@article{aguilar-sierra_melhem_1998,  title={Morfologia polínica da tribo Protieae (Burseraceae) na América do Sul},  volume={21},  ISSN={0100-8404},  url={https://doi.org/10.1590/S0100-84041998000100005},  DOI={10.1590/S0100-84041998000100005},  number={1},  journal={Brazilian Journal of Botany},  publisher={Sociedade Botânica de São Paulo},  author={Aguilar-Sierra, Clara Isabel and Melhem, Therezinha Sant'Anna},  year={1998},  month={Apr},  pages={35–63} }