Koparan, M. “Derivation of Sawada-Kotera and Kaup-Kupershmidt Equations KdV Flow Equations from Modified Nonlinear Schrödinger Equation (MNLS)ns from Modfied Nonlinear Schrödinger Equation (MNLS)”. Contemporary Mathematics, vol. 5, no. 4, Oct. 2024, pp. 4223-34, doi:10.37256/cm.5420244648.