Article révisé par les pairs
Résumé : 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]. © 2008 Elsevier Masson SAS. All rights reserved.