@article{EJDE_2002__2002__a269,
     author = {Clark, Marcondes R. and Lima, Osmundo A.},
     title = {Existence of solutions for a variational unilateral system},
     journal = {Electronic Journal of Differential Equations},
     publisher = {mathdoc},
     volume = {2002},
     year = {2002},
     language = {en},
     url = {http://geodesic.mathdoc.fr/item/EJDE_2002__2002__a269/}
}