@article{EJDE_2010__2010__a263, author = {Bensid, Sabri and Bouguima, Sidi Mohammed}, title = {Existence and multiplicity of solutions to elliptic problems with discontinuities and free boundary conditions}, journal = {Electronic journal of differential equations}, year = {2010}, volume = {2010}, zbl = {1196.35219}, language = {en}, url = {http://geodesic.mathdoc.fr/item/EJDE_2010__2010__a263/} }