BibTeX

@ARTICLE{iumj51012,
    author = "Eberhard Hopf",
     title = "Remarks on the Preceding Paper by D. Gilbarg",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 1,
      year = 1952,
     issue = 3,
     pages = "419--424",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj51012}{article}{
     author = {Hopf, Eberhard},
      title = {Remarks on the Preceding Paper by D. Gilbarg},
    journal = {Indiana Univ. Math. J.},
     volume = {1},
       year = {1952},
     number = {3},
      pages = {419 \ndash 424},
}