BibTeX

@ARTICLE{iumj18071,
    author = "J. Eisenfeld",
     title = "Schwarzschild's Criterion and a Nonlinear Eigenvalue Problem*",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 18,
      year = 1969,
     issue = 10,
     pages = "991--1006",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj18071}{article}{
     author = {Eisenfeld, J.},
      title = {Schwarzschild's Criterion and a Nonlinear Eigenvalue Problem*},
    journal = {Indiana Univ. Math. J.},
     volume = {18},
       year = {1969},
     number = {10},
      pages = {991 \ndash 1006},
}