1. I. Podlubny, Fractional Differential Equations (Mathematics in Science and Engineering, Academic Press, New York, 1999).
2. KS. Miller and B. Ross, An Introduction to the Fractional Calculus and Fractional Differential Equations (John Wiley and Sons, INC, California, 1993).
3. KB. Oldham and J. Spainer, The Fractional Calculus (Academic Press, New York, 1974).
4. S.G. Samko, A.A. Kilbas, and O.I. Marichev, Fractional Integrals and derivatives: Theory and Applications (Taylor and Francis, London, 1993).
5. S. Saha Ray, Fractional Calculus with applications for Nuclear Reactor Dynamics (CRC Press, Taylor and Francis Group, Boca Raton, 2015).