1. Miller, K.S., Ross, B.: An Introduction to the Fractional Calculus and Differential Equations. Wiley, New York (1993)
2. Podlubny, I.: Fractional Differential Equations. Academic Press, San Diego (1999)
3. North-Holland Mathematics Studies;A.A. Kilbas,2006
4. Katugampola, U.N.: New approach to a generalized fractional integral. Appl. Math. Comput. 218(3), 860–865 (2011)
5. Katugampola, U.N.: On generalized fractional integrals and derivatives. Southern Illinois University at Carbondale (2011)