%0 Journal Article
%A Constantin P. Niculescu
%A Vicentiu Radulescu
%T A saddle point theorem for non-smooth functionals and problems at resonance
%J Annales Fennici Mathematici
%D 1996
%P 117-131
%V 21
%N 1
%I mathdoc
%U http://geodesic.mathdoc.fr/item/AFM_1996_21_1_a8/
%G en
%F AFM_1996_21_1_a8