%0 Journal Article
%A Ernst A. Ruh
%T Curvature and Differentiable Structure on Spheres
%J Commentarii mathematici Helvetici
%D 1971
%P 127-136
%V 46
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1971__46_139467/
%F CMH_1971__46_139467