%0 Journal Article %A René P. Held %A Denis Sjerve %T On the Spanier Conjecture %J Commentarii mathematici Helvetici %D 1972 %P 75-91 %V 47 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1972__47_139501/ %F CMH_1972__47_139501