%0 Journal Article %A Arthur J. Ledger %A R. Bruce Pettitt %T Compact Quadratic s-Manifolds %J Commentarii mathematici Helvetici %D 1976 %P 105-132 %V 51 %I mathdoc %U http://geodesic.mathdoc.fr/item/CMH_1976__51_139646/ %F CMH_1976__51_139646