I. M. Mendez-Zuñiga, T. L. Belyaeva, M. A. Agüero and V.N. Serkin 2025. Multisoliton Bound States in the Fourth-Order Concatenation Model of the Nonlinear Schrödinger Equation Hierarchy. Transactions in Optics and Photonics. 1, 1 (Mar. 2025), 22–33.