BibTeX

@ARTICLE{iumj10042,
    author = "Avner Friedman",
     title = "Local Isometric Imbedding of Riemannian Manifolds with Indefinite Metrics",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 10,
      year = 1961,
     issue = 4,
     pages = "625--649",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj10042}{article}{
     author = {Friedman, Avner},
      title = {Local Isometric Imbedding of Riemannian Manifolds with Indefinite Metrics},
    journal = {Indiana Univ. Math. J.},
     volume = {10},
       year = {1961},
     number = {4},
      pages = {625 \ndash 649},
}