 @article{rodrigues_mazzone_santos_cruz_fernandes_2009, title={Optimization of the production of ethyl esters by ultrasound assisted reaction of soybean oil and ethanol}, volume={26}, ISSN={0104-6632}, url={https://doi.org/10.1590/S0104-66322009000200013}, DOI={10.1590/S0104-66322009000200013}, number={2}, journal={Brazilian Journal of Chemical Engineering}, publisher={Brazilian Society of Chemical Engineering}, author={Rodrigues, S. and Mazzone, L. C. A. and Santos, F. F. P. and Cruz, M. G. A. and Fernandes, F. A. N.}, year={2009}, month={Apr}, pages={361–366} }