M. Hart-Simmons, A. Biswas, Y. Yıldırım, S. Moshokoa, A. Dakova, and A. Asiri, “Optical Soliton Perturbation with the Concatenation Model: Semi-inverse Variation”, C. R. Acad. Bulg. Sci. , vol. 77, no. 3, pp. 330–337, Mar. 2024.