Boundary Value Problems of Hadamard Fractional Differential Equations of Variable Order. - Snezhana G. Hristova; Amar Benkerrouche; Mohammed Said Souid; Ali Hakem (Symmetry, 2021)

Multiterm Impulsive Caputo-Hadamard Type Differential Equations of Fractional Variable Order. - Amar Benkerrouche; Mohammed Said Souid; Gani Tr. Stamov; Ivanka M. Stamova (Axioms, 2022)

On the Solutions of a Quadratic Integral Equation of the Urysohn Type of Fractional Variable Order. - Amar Benkerrouche; Mohammed Said Souid; Gani Tr. Stamov; Ivanka M. Stamova (Entropy, 2022)