Minghui Wang and  Shanrui Hu,  Iterative Methods for An Inverse Problem.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    April 2011, vol. 52(4). 597 - 599
    [viewed 08 May 2024]. Available from: https://publications.waset.org/pdf/11939.