BibTeX

@ARTICLE{iumj23068,
    author = "Peter Hess",
     title = "On a Theorem by Landesman and Lazer",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 23,
      year = 1974,
     issue = 9,
     pages = "827--829",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj23068}{article}{
     author = {Hess, Peter},
      title = {On a Theorem by Landesman and Lazer},
    journal = {Indiana Univ. Math. J.},
     volume = {23},
       year = {1974},
     number = {9},
      pages = {827 \ndash 829},
}