@article{borin_poppi_2004,  title={Multivariate quality control of lubricating oils using Fourier transform infrared spectroscopy},  volume={15},  ISSN={0103-5053},  url={https://doi.org/10.1590/S0103-50532004000400020},  DOI={10.1590/S0103-50532004000400020},  number={4},  journal={Journal of the Brazilian Chemical Society},  publisher={Sociedade Brasileira de Química},  author={Borin, Alessandra and Poppi, Ronei Jesus},  year={2004},  month={Jul},  pages={570–576} }