%0 Journal Article %A Bonheure, Denis %A Ramos, Miguel %T Multiple Critical Points of Perturbed Symmetric Strongly Indefinite Functionals %J Annales de l'I.H.P. Analyse non linéaire %D 2009 %P 675-688 %V 26 %N 2 %I Elsevier %U http://www.numdam.org/articles/10.1016/j.anihpc.2008.06.002/ %R 10.1016/j.anihpc.2008.06.002 %G en %F AIHPC_2009__26_2_675_0