BibTeX

@ARTICLE{iumj25021,
    author = "Herbert Amann and Theodore Laetsch",
     title = "Positive Solutions of Convex Nonlinear Eigenvalue Problems",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 25,
      year = 1976,
     issue = 3,
     pages = "259--270",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj25021}{article}{
     author = {Amann, Herbert},
     author = {Laetsch, Theodore},
      title = {Positive Solutions of Convex Nonlinear Eigenvalue Problems},
    journal = {Indiana Univ. Math. J.},
     volume = {25},
       year = {1976},
     number = {3},
      pages = {259 \ndash 270},
}