1. Podlubny, I.: Fractional Differential Equations. Academic Press, San Diego (1999)
2. Kilbas, A.A., Srivastava, H.M., Trujillo, J.J.: Theory and Application of Fractional Differential Equations. Elsevier, North-Holland (2006)
3. Baleanu, D., Diethelm, K., Scalas, E., Trujillo, J.J.: Fractional Calculus Models and Numerical Methods. World Scientific, Singapore (2012)
4. Sayevand, K., Pichaghchi, K.: Successive approximation: a survey on stable manifold of fractional differential systems. Fract. Calculus Appl. Anal. 18(3), 621–641 (2015)
5. Sayevand, K.: Analytical treatment of Volterra integro-differential equations of fractional order. Appl. Math. Model. 39(15), 4330–4336 (2015)