I. . Samir, O. . El-Sham, R. . El-barkoki, H. M. Ahmed, W. . Abbas, and M. S. . Hashemi, “Extraction of Solitons in Optical Fibers for the (2+1)-Dimensional Perturbed Nonlinear Schrödinger Equation Via the Improved Modified Extended Tanh Function Technique”, Contemp. Math., vol. 5, no. 2, pp. 1922–1935, Apr. 2024.