@article{silva_almeida_ferreira_ciminelli_2012,  title={Preparation and application of a magnetic composite (Mn3O4/Fe3O4) for removal of As(III) from aqueous solutions},  volume={15},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392012005000041},  DOI={10.1590/S1516-14392012005000041},  number={3},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Silva, Gabriela Cordeiro and Almeida, Fabiana Soares and Ferreira, Angela Melo and Ciminelli, Virginia Sampaio Teixeira},  year={2012},  month={May},  pages={403–408} }