TY - JOUR AU - Yaning Wang AU - Ximin Liu TI - Complete spacelike hypersurfaces with positive r-th mean curvature in a semi-Riemannian warped product JO - Analele Universităţii "Ovidius" Constanţa Seria Matematică PY - 2015 VL - XXIII IS - 2 PB - mathdoc UR - http://geodesic.mathdoc.fr/item/ASUO_2015_XXIII_2_a24/ ID - ASUO_2015_XXIII_2_a24 ER -