中国科学院数学与系统科学研究院期刊网
ON THE DEFORMATION OF A RIEMANNIAN METRIC V_m IN A SPACE OF CONSTANT CURVATURE S_(m+1)
胡和生
Acta Mathematica Sinica, Chinese Series . 1956, (2): 320 -332 .  DOI: 10.12386/A1956sxxb0025