%0 Journal Article %A Alama, Stanley %A Del Pino, Manuel %T Solutions of elliptic equations with indefinite nonlinearities via Morse theory and linking %J Annales de l'I.H.P. Analyse non linéaire %D 1996 %P 95-115 %V 13 %N 1 %I Gauthier-Villars %U http://archive.numdam.org/item/AIHPC_1996__13_1_95_0/ %G en %F AIHPC_1996__13_1_95_0