%0 Journal Article %A Matei, Pavel %T Existence and multiplicity of solutions to operator equations involving duality mappings on Sobolev spaces with variable exponents %J Electronic Journal of Differential Equations %D 2015 %V 2015 %I mathdoc %U http://geodesic.mathdoc.fr/item/EJDE_2015__2015__a66/ %G en %F EJDE_2015__2015__a66