%0 Journal Article %A Diethelm, Kai %T Smoothness Properties of Solutions of Caputo-Type Fractional Differential Equations %J Fractional calculus and applied analysis %D 2007 %P 151-160 %V 10 %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/FCAA_2007_10_2_a4/ %G en %F FCAA_2007_10_2_a4