@article{lovejoy_2006,  title={Mercadores e carregadores das Caravanas do Sudão Central, século XIX},  volume={10},  ISSN={1413-7704},  url={https://doi.org/10.1590/S1413-77042006000100004},  DOI={10.1590/S1413-77042006000100004},  number={20},  journal={Tempo},  publisher={EdUFF - Editora da UFF},  author={Lovejoy, Paul E.},  year={2006},  month={Jan},  pages={50–71} }