%0 Journal Article %A Umarov, Sabir %A Saydamatov, Erkin %T A Fractional Analog of the Duhamel Principle %J Fractional calculus and applied analysis %D 2006 %P 57-70 %V 9 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/FCAA_2006_9_1_a4/ %G en %F FCAA_2006_9_1_a4