Erratum to: “Multiple critical points of perturbed symmetric strongly indefinite functionals” [http://dx.doi.org/10.1016/j.anihpc.2008.06.002]

We correct the statement and the proof of Proposition 9 in [D. Bonheure, M. Ramos, Multiple critical points of perturbed symmetric strongly indefinite functionals, http://dx.doi.org/10.1016/j.anihpc.2008.06.002].