@article{aguiar_zanella_martins_carvalho_2003,  title={Plantas visitadas por Centris spp. (Hymenoptera: Apidae) na Caatinga para obtenção de recursos florais},  volume={32},  ISSN={1519-566X},  url={https://doi.org/10.1590/S1519-566X2003000200009},  DOI={10.1590/S1519-566X2003000200009},  number={2},  journal={Neotropical Entomology},  publisher={Sociedade Entomológica do Brasil},  author={Aguiar, Cândida M.L. and Zanella, Fernando C.V. and Martins, Celso F. and Carvalho, Carlos A.L. de},  year={2003},  month={Apr},  pages={247–259} }