BibTeX

@ARTICLE{iumj21021,
    author = "Hermann Flaschka",
     title = "A Nonlinear Spectral Theorem for Abstract Nemytskii Operators",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 21,
      year = 1972,
     issue = 3,
     pages = "265--276",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj21021}{article}{
     author = {Flaschka, Hermann},
      title = {A Nonlinear Spectral Theorem for Abstract Nemytskii Operators},
    journal = {Indiana Univ. Math. J.},
     volume = {21},
       year = {1972},
     number = {3},
      pages = {265 \ndash 276},
}