Morteza Abbaszadeh and  Parvin Nikpoorparizi and  Mina Shahrooz,  Analysis of Distribution of Thrust, Torque and Efficiency of a Constant Chord, Constant Pitch C.R.P. Fan by H.E.S. Method.   journal   = {International Journal of Mechanical and Mechatronics Engineering}, [online]. World Academy of Science, Engineering and Technology.
    July 2011, vol. 55(7). 1530 - 1534
    [viewed 22 October 2019]. Available from: https://publications.waset.org/pdf/1500.