@article{rocha filho_bach_barrak_queiroz_2001,  title={Novel material for nickel recuperation},  volume={4},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392001000200002},  DOI={10.1590/S1516-14392001000200002},  number={2},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Rocha Filho, José A. da and Bach, Erna E. and Barrak, Élcio R. and Queiroz, Alvaro A.A. de},  year={2001},  pages={53–57} }