1. S. G. Samko, A. A. Kilbas, O. I. Marichev, Fractional integrals and derivatives theroy and applications, Gordon and Breach Science Publishers, 1993.
2. A. A. Kilbas, H. M. Srivastava, J. J. Trujillo, Theory and applications of fractional differential equations, Amsterdam: Elsevier Science, 2006.
3. V. Kiryakova, Generalized fractional calculus and applications, New York: J. Wiley & Sons, Inc., 1994.
4. T. J. Osler, The fractional derivative of a composite function, SIAM J. Math. Anal., 1 (1970), 288-293.
5. V. Kiryakova, A brief story about the operators of generalized fractional calculus, Fract. Calc. Appl. Anal., 11 (2008), 203-220.