1. Abbas, S., Albarakati, W., Benchohra, M., N’Guérékata, G.M.: Existence and Ulam stabilities for Hadamard fractional integral equations in Fréchet spaces. J. Fract. Calc. Appl. 7(2), 1–12 (2016)
2. Abbas, S., Albarakati, W.A., Benchohra, M., Henderson, J.: Existence and Ulam stabilities for Hadamard fractional integral equations with random effects. Electron. J. Differ. Equ. 2016, Article ID 25 (2016)
3. Abbas, S., Albarakati, W.A., Benchohra, M., Sivasundaram, S.: Dynamics and stability of Fredholm type fractional order Hadamard integral equations. Nonlinear Stud. 22(4), 673–686 (2015)
4. Abbas, S., Benchohra, M., Graef, J.R., Henderson, J.: Implicit Fractional Differential and Integral Equations: Existence and Stability. de Gruyter, Berlin (2018)
5. Abbas, S., Benchohra, M., N’Guérékata, G.M.: Topics in Fractional Differential Equations. Springer, New York (2012)