%0 Journal Article
%A Eliashberg, Yakov
%T New invariants of open symplectic and contact manifolds
%J Journal of the American Mathematical Society
%D 1991
%P 513-520
%V 04
%N 3
%I mathdoc
%U http://geodesic.mathdoc.fr/articles/10.1090/S0894-0347-1991-1102580-2/
%R 10.1090/S0894-0347-1991-1102580-2
%F 10_1090_S0894_0347_1991_1102580_2