El-Sayed, A. M. A., H. Zahed, S. I. Nasim, and E. M. A. Hamdallah. “Multi-Term Nonlinear Fractal-Orders Delayed Abel Integral Equation: Existence of Solutions, Stability, and Applications”. Contemporary Mathematics, vol. 6, no. 6, Nov. 2025, pp. 8594-21, doi:10.37256/cm.6620258293.