Emin, A., M. A. Abdelkawy, and . A. Biswas. “Efficient Spectral Collocation Schemes for Nonlinear <i>ψ</I>-Caputo Fractional Riccati Differential Equations With Variable-Order”. Contemporary Mathematics, vol. 7, no. 3, May 2026, pp. 3165-83, doi:10.37256/cm.7320267646.