中国科学院数学与系统科学研究院期刊网
On Spacelike Hypersurfaces with Constant Mean Curvature in de Sitter Space
Zhi Cai XU
Acta Mathematica Sinica, Chinese Series . 1999, (5): 787 -794 .  DOI: 10.12386/A1999sxxb0106