%0 Journal Article %A F.J. Pedit %T A non-immersion theorem for spaceforms. %J Commentarii mathematici Helvetici %D 1988 %P 672-674 %V 63 %N 4 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1988__63_4_140139/ %F CMH_1988__63_4_140139