@article{carvalho_krug_1949,  title={Agentes de polinização da flor do cafeeiro (Coffea arabica L},  volume={9},  ISSN={0006-8705},  url={https://doi.org/10.1590/S0006-87051949000100002},  DOI={10.1590/S0006-87051949000100002},  number={1-4},  journal={Bragantia},  publisher={Instituto Agronômico de Campinas},  author={Carvalho, A. and Krug, C. A.},  year={1949},  pages={11–24} }