WASET
    O. Mahian and  A. B. Rahimi and  A. Kianifar and  A. Jabari Moghadam,  Unsteady Flow between Two Concentric Rotating Spheres along with Uniform Transpiration.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    February 2010, vol. 38(2). 239 - 243
    [viewed 20 April 2024]. Available from: https://publications.waset.org/pdf/3047.