1. K. B. Oldham and J. Spanier, The fractional calculus: Theory and applications of differentiation and integration to arbitrary order, Academic Press, New York, 1974.
2. K. S. Miller and B. Ross, An Introduction to the fractional integrals and derivatives: Theory and applications, Wiley, New York, 1993.
3. S. G. Samko, A. A. Kilbas and O. I. Marichev, Fractional integrals and derivatives: Theory and applications, Gordon and Breach, New York, 1993.
4. I. Podlubny, Fractional differential equations, Academic Press, San Diego, 1999.
5. R. Hilfer, Applications of fractional calculus in physics, World Scientific Publishing, Singapore, 2000.