%0 Journal Article
%A Alan Weinstein
%T Cohomology of Symplectomorphism Groups and Critical Values of Hamiltonians.
%J Mathematische Zeitschrift
%D 1989
%P 75-82
%V 201
%N 4
%I mathdoc
%U http://geodesic.mathdoc.fr/item/MZ_1989__201_4_174036/
%F MZ_1989__201_4_174036