Sachin Bhalekar and  Varsha Daftardar-Gejji,  Solving a System of Nonlinear Functional Equations Using Revised New Iterative Method.   journal   = {International Journal of Mathematical and Computational Sciences}, [online]. World Academy of Science, Engineering and Technology.
    August 2012, vol. 68(8). 968 - 972
    [viewed 25 April 2024]. Available from: https://publications.waset.org/pdf/1209.