%0 Journal Article %A Kazuo Akutagawa %T On Spacelike Hypersurfaces with Constant Mean Curvature in the de Sitter Space. %J Mathematische Zeitschrift %D 1987 %P 13-20 %V 196 %I mathdoc %U http://geodesic.mathdoc.fr/item/MZ_1987__196_173859/ %F MZ_1987__196_173859