@article{martins_oliveira_aguiar_antonini_2020,  title={Pollination biology of the endangered columnar cactus <i>Cipocereus crassisepalus</i>: a case of close relationship between plant and pollinator},  volume={34},  ISSN={0102-3306},  url={https://doi.org/10.1590/0102-33062019abb0219},  DOI={10.1590/0102-33062019abb0219},  number={1},  journal={Acta Botanica Brasilica},  publisher={Sociedade Botânica do Brasil},  author={Martins, Cristiane and Oliveira, Reisla and Aguiar, Ludmilla M.S. and Antonini, Yasmine},  year={2020},  month={Jan},  pages={177–184} }