@article{carneiro_poppi_2012,  title={A quantitative method using near infrared imaging spectroscopy for determination of surface composition of tablet dosage forms: an example of spirolactone tablets},  volume={23},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532012005000022},  DOI={10.1590/S0103-50532012005000022},  number={8},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Carneiro, Renato L. and Poppi, Ronei J.},  year={2012},  month={Aug},  pages={1570–1576} }