Abdulrahman Abdulrahman,  Analytical Formulae for the Approach Velocity Head Coefficient.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2017, vol. 130(10). 458 - 464
    [viewed 19 April 2024]. Available from: https://publications.waset.org/pdf/10007982.