%0 Journal Article %A Boukrouche, Mahdi %A Tarzia, Domingo A. %T On a convex combination of solutions to elliptic variational inequalities %J Electronic Journal of Differential Equations %D 2007 %V 2007 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2007__2007__a145/ %G en %F EJDE_2007__2007__a145