BibTeX

@ARTICLE{iumj21011,
    author = "W. Sikonia",
     title = "The von Neumann Converse of Weyl's Theorem",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 21,
      year = 1972,
     issue = 2,
     pages = "121--124",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj21011}{article}{
     author = {Sikonia, W.},
      title = {The von Neumann Converse of Weyl's Theorem},
    journal = {Indiana Univ. Math. J.},
     volume = {21},
       year = {1972},
     number = {2},
      pages = {121 \ndash 124},
}