1. Ahmad, B., Alsaedi, A., Ntouyas, S.K., Tariboon, J.: Hadamard-Type Fractional Differential Equations, Inclusions and Inequalities. Springer, Cham (2017)
2. North-Holland Mathematics Studies;A.A. Kilbas,2006
3. Pitman Research Notes in Mathematics Series;V. Kiryakova,1994
4. Miller, K.S., Ross, B.: An Introduction to the Fractional Calculus and Differential Equations. Wiley, New York (1993)
5. Podlubny, I.: Fractional Differential Equations. Academic Press, San Diego (1999)