@article{dantas filho_souza_visani_barros_saldanha_araújo_galvão_2005,  title={Simultaneous spectrometric determination of Cu2+, Mn2+ and Zn2+ in polivitaminic/polimineral drug using SPA and GA algorithms for variable selection},  volume={16},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532005000100009},  DOI={10.1590/S0103-50532005000100009},  number={1},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Dantas Filho, Heronides A. and Souza, Ênio S. O. N. de and Visani, Valeria and Barros, Sara R. R. C. de and Saldanha, Teresa C. B. and Araújo, Mário C. U. and Galvão, Roberto K. H.},  year={2005},  month={Jan},  pages={58–61} }