Kurtinaitis, A., and F. Ivanauskas. “Finite Difference Solution Methods for a System of the Nonlinear Schrödinger Equations”. Nonlinear Analysis: Modelling and Control 9, no. 3 (July 25, 2004): 247–258. Accessed April 27, 2025. https://journals.vu.lt./nonlinear-analysis/article/view/15156.