Adil AL-Rammahi,  Power Series Form for Solving Linear Fredholm Integral Equations of Second Order via Banach Fixed Point Theorem.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    February 2014, vol. 85(1). 177 - 179
    [viewed 09 May 2021]. Available from: https://publications.waset.org/pdf/9997656.