1. The Fractional Calculus: Theory and Applications, Differentiation and Integration to Arbitrary Order;Oldham,1974
2. Fractional Integrals and Derivatives: Theory and Applications;Samko,1993
3. Fractional Differential Equations;Podlubny,1999
4. Theory and Applications of Fractional Differential Equations;Kilbas,2006
5. The Fractal Geometry of Nature;Mandelbrot,1982