@article{1974,  title={The chemical composition of Amazonian plants},  volume={4},  ISSN={0044-5967},  url={https://doi.org/10.1590/1809-43921974042019},  DOI={10.1590/1809-43921974042019},  number={2},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  year={1974},  month={Aug},  pages={19–21} }