%0 Journal Article
%A Douglas C. Ravenel
%T A Definition of Exotic Characteristic Classes of Spherical Fibrations
%J Commentarii mathematici Helvetici
%D 1972
%P 421-436
%V 47
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1972__47_139524/
%F CMH_1972__47_139524