@article{pedrosa_nunhez_2003,  title={Improving heat transfer in stirred tanks cooled by helical coils},  volume={20},  ISSN={0104-6632},  url={https://doi.org/10.1590/S0104-66322003000200004},  DOI={10.1590/S0104-66322003000200004},  number={2},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Pedrosa, S.M.C.P. and Nunhez, J.R.},  year={2003},  month={Apr},  pages={111–120} }