%0 Journal Article %A Yaning Wang %A Ximin Liu %T Complete spacelike hypersurfaces with positive r-th mean curvature in a semi-Riemannian warped product %J Analele Universităţii "Ovidius" Constanţa Seria Matematică %D 2015 %V XXIII %N 2 %I mathdoc %U http://geodesic.mathdoc.fr/item/ASUO_2015_XXIII_2_a24/ %F ASUO_2015_XXIII_2_a24