%0 Journal Article
%A Israel Berstein
%T Homotopy mod. C of Spaces of Category 2.
%J Commentarii mathematici Helvetici
%D 1961
%P 9-14
%V 35
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1961__35_139201/
%F CMH_1961__35_139201