@article{piloto-rodríguez_melo_goyos-pérez_verhelst_2014,  title={Conversion of by-products from the vegetable oil industry into biodiesel and its use in internal combustion engines: a review},  volume={31},  ISSN={0104-6632},  url={https://doi.org/10.1590/0104-6632.20140312s00002763},  DOI={10.1590/0104-6632.20140312s00002763},  number={2},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Piloto-Rodríguez, R. and Melo, E. A. and Goyos-Pérez, L. and Verhelst, S.},  year={2014},  month={Apr},  pages={287–301} }