WASET
    A. Keshavarz and  Z. Roosta,  Simulation of Propagation of Cos-Gaussian Beam in Strongly Nonlocal Nonlinear Media Using Paraxial Group Transformation .   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    March 2017, vol. 122(2). 90 - 93
    [viewed 11 May 2024]. Available from: https://publications.waset.org/pdf/10006913.