M. Younis, M. Bilal, S. U. Rehman, A. R. Seadawy, and S. T. R. Rizvi, “Perturbed optical solitons with conformable time-space fractional Gerdjikov–Ivanov equation”, Math. Sci., vol. 16, no. 4 (December 2022), Aug. 2021, doi: 10.1007/s40096-021-00431-3.