BibTeX

@ARTICLE{iumj38011,
    author = "Zhongmin Shen",
     title = "A Sphere Theorem for Manifolds of Positive Ricci Curvature",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 38,
      year = 1989,
     issue = 1,
     pages = "229--233",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj38011}{article}{
     author = {Shen, Zhongmin},
      title = {A Sphere Theorem for Manifolds of Positive Ricci Curvature},
    journal = {Indiana Univ. Math. J.},
     volume = {38},
       year = {1989},
     number = {1},
      pages = {229 \ndash 233},
}