Shazia Javed and  Noor Atinah Ahmad,  An Estimation of the Performance of HRLS Algorithm.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    December 2012, vol. 72(12). 1665 - 1667
    [viewed 21 October 2019]. Available from: https://publications.waset.org/pdf/11855.