%0 Journal Article %A Salem, Hussein %T Set-valued fractional order differential equations in the space of summable functions %J Discussiones Mathematicae. Differential Inclusions, Control and Optimization %D 2008 %P 83-93 %V 28 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/item/DMDICO_2008_28_1_a3/ %G en %F DMDICO_2008_28_1_a3