B. Robertson and  K. Hall,  Wave Vortex Parameters as an Indicator of Breaking Intensity.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 73(1). 47 - 54
    [viewed 23 April 2024]. Available from: https://publications.waset.org/pdf/6937.