“The Discrete Nonlinear Schrödinger Type Hierarchy, Its Finite Dimensional Reduction Analysis and Numerical Integrability Scheme”. Neliniini Kolyvannya 20, no. 2 (June 29, 2017): 228–266. Accessed December 8, 2025. https://twinhead.imath.kiev.ua/index.php/nosc/article/view/866.