1. A.A. Kilbas, H.M. Srivastava, J.J. Trujillo, Theory and Applications of Fractional Differential Equations (Elsevier (North-Holland) Science Publishers, Amsterdam, 2006)
2. I. Podlubny, Fractional Differential Equations (Academic Press, San Diego, 1999)
3. S.G. Samko, A.A. Kilbas, O.I. Marichev, Fractional Integrals and Derivatives, Theory and Applications, Gordon and Breach (Yverdon et alibi, 1993)
4. P. Agarwal, Q. Al-Mdallal, Y.J. Cho, S. Jain, Adv. Differ. Equ. 589 (2018)
5. K. Diethelm, R. Garrappa, A. Giusti, M. Stynes, Fract. Calc. Appl. Anal. 23, 610 (2020)