@article{kojić_popović_tokić_šijački_lukić_jovičević_petrović_2017,  title={Hydrodynamics of an external-loop airlift reactor with inserted membrane},  volume={34},  ISSN={0104-6632},  url={https://doi.org/10.1590/0104-6632.20170342s20150399},  DOI={10.1590/0104-6632.20170342s20150399},  number={2},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Kojić, Predrag S. and Popović, Svetlana S. and Tokić, Milenko S. and Šijački, Ivana M. and Lukić, Nataša Lj. and Jovičević, Dragica Z. and Petrović, Dragan Lj.},  year={2017},  month={Apr},  pages={493–505} }