%0 Journal Article
%A A. Pfister
%A S. Stolz
%T On the level of projective spaces.
%J Commentarii mathematici Helvetici
%D 1987
%P 286-291
%V 62
%I mathdoc
%U http://geodesic.mathdoc.fr/item/CMH_1987__62_140086/
%F CMH_1987__62_140086