@article{bakri_mekaeel_koreih_2011,  title={Influence of agitation speeds and aeration rates on the Xylanase activity of Aspergillus niger SS7},  volume={54},  ISSN={1516-8913},  url={https://doi.org/10.1590/S1516-89132011000400003},  DOI={10.1590/S1516-89132011000400003},  number={4},  journal={Brazilian Archives of Biology and Technology},  publisher={Instituto de Tecnologia do Paraná - Tecpar},  author={Bakri, Yasser and Mekaeel, Alaa and Koreih, Amal},  year={2011},  month={Jul},  pages={659–664} }