BibTeX

@ARTICLE{iumj18039,
    author = "E. Rogers",
     title = "Variational Properties of Nonlinear Spectra",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 18,
      year = 1969,
     issue = 6,
     pages = "479--490",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj18039}{article}{
     author = {Rogers, E.},
      title = {Variational Properties of Nonlinear Spectra},
    journal = {Indiana Univ. Math. J.},
     volume = {18},
       year = {1969},
     number = {6},
      pages = {479 \ndash 490},
}