1. Oldham, K.B., and Spanier, J. (1974). The Fractional Calculus, Academic Press.
2. Miller, K.S., and Ross, B. (1993). An Introduction to the Fractional Calculus and Fractional Differential Equations, John Wiley & Sons.
3. Carpinteri, A., and Mainardi, F. (1977). Fractional Calculus in Continuum Mechanics, Springer.
4. Samko, S.G., Kilbas, A.A., and Marichev, O.I. (1993). Fractional Integrals and Derivatives, Gordon and Breach.
5. Podlubny, I. (1999). Fractional Differential Equations, Academic Press.