@article{figueiredo_1980,  title={A Declaração de Belém(*)},  volume={10},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921980104703},  DOI={10.1590/1809-43921980104703},  number={4},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Figueiredo, João Baptista de Oliveira},  year={1980},  month={Dec},  pages={703–706} }