%0 Journal Article
%A Beno Eckmann
%A Heinz Müller
%T Poincaré duality groups of dimension two.
%J Commentarii mathematici Helvetici
%D 1980
%P 510-520
%V 55
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1980__55_139841/
%F CMH_1980__55_139841