Samir I, El-Sham O, El-barkoki R, M. Ahmed H, Abbas W, Hashemi MS. 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. [Internet]. 2024 Apr. 25 [cited 2024 Dec. 21];5(2):2397-410. Available from: https://ojs.wiserpub.com/index.php/CM/article/view/4301