@article{torab-mostaedi_jalilvand_outokesh_2011,  title={Dispersed phase holdup in a pulsed disc and doughnut extraction column},  volume={28},  ISSN={0104-6632},  url={https://doi.org/10.1590/S0104-66322011000200016},  DOI={10.1590/S0104-66322011000200016},  number={2},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Torab-Mostaedi, M. and Jalilvand, H. and Outokesh, M.},  year={2011},  month={Apr},  pages={313–323} }