Mahmoud Zarrini and  Sanaz Torkaman,  The Application of Hybrid Orthonomal Bernstein and Block-Pulse Functions in Finding Numerical Solution of Fredholm Fuzzy Integral Equations.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    September 2014, vol. 91(7). 1074 - 1078
    [viewed 26 February 2020]. Available from: https://publications.waset.org/pdf/9999576.