1. Miller KS, Ross B (1993) An Introduction to the Fractional Calculus and Fractional Differential Equations. Wiley, New York.
2. Samko SG, Kilbas AA, Marichev OI (1993) Fractional Integrals and Derivatives - Theory and Applications. Gordon and Breach, Linghorne, PA.
3. Oldham KB, Spanier J (1974) The Fractional Calculus. Academic Press, New York.
4. Podlubny I (1999) Fractional Differential Equations. Academic Press, New York.
5. Hilfer I (2000) Applications of Fractional Calculus in Physics. World Scientific, New Jersey.