BibTeX

@ARTICLE{iumj54034,
    author = "Erwin Kreyszig",
     title = "On a Class of Partial Differential Equations",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 4,
      year = 1955,
     issue = 6,
     pages = "907--923",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj54034}{article}{
     author = {Kreyszig, Erwin},
      title = {On a Class of Partial Differential Equations},
    journal = {Indiana Univ. Math. J.},
     volume = {4},
       year = {1955},
     number = {6},
      pages = {907 \ndash 923},
}