[1] Bressan A, Colombo G. Extensions and selections of maps with decomposable values. Studia Math, 1988, 90: 69--86

[2] Caputo M. Elasticitá e Dissipazione. Bologna: Zanichelli, 1969

[3] Cernea A. Continuous version of Filippov's theorem for fractional differential inclusions. Nonlinear Anal, 2010, 72: 204--208

[4] Chalishajar D N, Karthikeyan K. Existence and uniqueness results for boundary value problems of higher order fractional integro-differential equations involving Gronwall's inequality in Banach spaces. Acta Mathematica Scientia, 2013, 33B: 758--772

[5] Colombo R M, Fryszkowsk Ai, Rzezuchowski T, Staicu V. Continuous selections of solution sets of Lipschitzean differential inclusions. Funkcial Ekvac, 1991, 34: 321--330

[6] Filippov A F. Classical solutions of differential equations with multivalued right hand side. SIAM J Contro, 1967, 5: 609--621

[7] Karthikeyan K, Trujillo J J. Existence and uniqueness results for fractional integro-differential equations with boundary value conditions. Commun Nonlinear Sci Numer Simulat, 2012, 17: 4037--4043

[8] Kilbas A, Srivastava H M, Trujillo J J. Theory and Applications of Fractional Differential Equations. Amsterdam: Elsevier, 2006

[9] Miller K, Ross B. An Introduction to the Fractional Calculus and Differential Equations. New York: John Wiley, 1993

[10] Podlubny I. Fractional Differential Equations. San Diego: Academic Press, 1999

[11] Zhu Q J. On the solution set of differential inclusions in Banach space. J Diff Equations, 1991, 93: 213--237

[12] Wang J R, Wei W, Yang Y. Fractional nonlocal integro-differential equations of mixed type with time varying generating operators and optimal control. Opuscula Math, 2010, 30: 361--381