1. Basic theory of fractional differential equations;Zhou,2017
2. An introduction to the fractional calculus and fractional differential equations;Miller,1993
3. Theory and applications of fractional differential equations;Kilbas,2006
4. Fractional differential equations;Podlubny,1999
5. Relative controllability in fractional differential equations with pure delay;Li;Math Methods Appl Sci,2018