%0 Journal Article
%A Urs Stammbach
%T Homological Methods in Group Varieties.
%J Commentarii mathematici Helvetici
%D 1970
%P 287-298
%V 45
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1970__45_139439/
%F CMH_1970__45_139439