WASET
    F. Nkontchou Ngongang and  M. Tchawe Tchawe and  B. Djeumako and  B. Kenmeugne,  Study of the Flow Structure in a Penstock in Unsteady Regime.   journal   = {International Journal of Civil and Environmental Engineering}, [online]. World Academy of Science, Engineering and Technology.
    March 2023, vol. 195(3). 140 - 145
    [viewed 28 April 2024]. Available from: https://publications.waset.org/pdf/10012999.