%0 Journal Article
%A Ramos, M.
%A Rebelo, C.
%T A unified approach to min-max critical point theorems.
%J Portugaliae mathematica
%D 1994
%P 489-516
%V 51
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/PORMA_1994__51_4_47349/
%G en
%F PORMA_1994__51_4_47349