@article{JCA_2011_18_3_JCA_2011_18_3_a2,
     author = {C. O. Alves and J. Abrantes Santos and J. V. A. Goncalves},
     title = {On {Multiple} {Solutions} for {Multivalued} {Elliptic} {Equations} under {Navier} {Boundary} {Conditions}},
     journal = {Journal of convex analysis},
     pages = {627--644},
     publisher = {mathdoc},
     volume = {18},
     number = {3},
     year = {2011},
     url = {http://geodesic.mathdoc.fr/item/JCA_2011_18_3_JCA_2011_18_3_a2/}
}