@article{horbe_oliveira_2008,  title={Química de igarapés de água preta do nordeste do Amazonas - Brasil},  volume={38},  ISSN={0044-5967},  url={https://doi.org/10.1590/S0044-59672008000400020},  DOI={10.1590/S0044-59672008000400020},  number={4},  journal={Acta Amazonica},  publisher={Instituto Nacional de Pesquisas da Amazônia},  author={Horbe, Adriana Maria Coimbra and Oliveira, Liliam Gleicy de Souza},  year={2008},  month={Dec},  pages={753–759} }