Manish K. Khandelwal and  P. Bera and  A. Chakrabarti,  Effect of Buoyancy Ratio on Non-Darcy Mixed Convection in a Vertical Channel: A Thermal Non-equilibrium Approach.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 1046 - 1050
    [viewed 14 December 2019]. Available from: https://publications.waset.org/pdf/8046.