%0 Journal Article
%A John N. Mather
%T Commutators of Diffeomorphisms
%J Commentarii mathematici Helvetici
%D 1974
%P 512-528
%V 49
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1974__49_139598/
%F CMH_1974__49_139598