@article{shafiq_nawaz_hayat_alsaedi_2013,  title={Magnetohydrodynamic axisymmetric flow of a third-grade fluid between two porous disks},  volume={30},  ISSN={0104-6632},  url={https://doi.org/10.1590/S0104-66322013000300017},  DOI={10.1590/S0104-66322013000300017},  number={3},  journal={Brazilian Journal of Chemical Engineering},  publisher={Brazilian Society of Chemical Engineering},  author={Shafiq, A. and Nawaz, M. and Hayat, T. and Alsaedi, A.},  year={2013},  month={Jul},  pages={599–609} }