%0 Journal Article
%A Steinmann, O.
%T On the characterization of physical states in gauge theories
%J Annales de l'I.H.P. Physique théorique
%D 1989
%P 299-321
%V 51
%N 3
%I Gauthier-Villars
%U http://archive.numdam.org/item/AIHPA_1989__51_3_299_0/
%G en
%F AIHPA_1989__51_3_299_0