@article{khan_mahmood_bazmi_2009,  title={Direct comparison between rotational and extrusion rheometers},  volume={12},  ISSN={1516-1439},  url={https://doi.org/10.1590/S1516-14392009000400017},  DOI={10.1590/S1516-14392009000400017},  number={4},  journal={Materials Research},  publisher={ABM, ABC, ABPol},  author={Khan, Asad Ullah and Mahmood, Nasir and Bazmi, Aqeel Ahemd},  year={2009},  pages={477–481} }