Sarun Phibanchon,  Two-Dimensional Solitary Wave Solution to the Quadratic Nonlinear Schrdinger Equation.   journal   = {International Journal of Physical and Mathematical Sciences}, [online]. World Academy of Science, Engineering and Technology.
    January 2013, vol. 73(1). 149 - 151
    [viewed 19 March 2024]. Available from: https://publications.waset.org/pdf/5505.