中国科学院数学与系统科学研究院期刊网
Isolation Phenomena for Riemannian Manifolds which Ricci Curvatare Tensors AreParallel
李安民;赵国松
Acta Mathematica Sinica, Chinese Series . 1994, (1):  .  DOI: 10.12386/A1994sxxb0004