Albala, H. ., K. . Maazouz, Z. . Bellabes, N. . Boussekkine, A. Moumen, and H. . Saber. “On the Stability of Partial Integral Equations Governed by Hadamard Fractional Integrals of Piecewise Constant Order”. Contemporary Mathematics, vol. 7, no. 3, May 2026, pp. 2996-13, doi:10.37256/cm.7320269002.