@article{silva_campos_pianetti_2005,  title={Development and validation of an alternative titration method for the determination of sulfate ion in indinavir sulfate},  volume={28},  ISSN={0100-4042},  url={https://doi.org/10.1590/S0100-40422005000100011},  DOI={10.1590/S0100-40422005000100011},  number={1},  journal={Química Nova},  publisher={Sociedade Brasileira de Química},  author={Silva, Breno de Carvalho e and Campos, Lígia Maria Moreira de and Pianetti, Gerson Antônio},  year={2005},  month={Jan},  pages={54–56} }