Munendra Kumar and  Deepak Singh,  Effects of Channel Bed Slope on Energy Dissipation of Different Types of Piano Key Weir.   journal   = {International Journal of Civil and Architectural Engineering}, [online]. World Academy of Science, Engineering and Technology.
    May 2022, vol. 185(5). 142 - 147
    [viewed 26 April 2024]. Available from: https://publications.waset.org/pdf/10012533.