BibTeX

@ARTICLE{iumj29049,
    author = "William Cohn",
     title = "Orthogonal Complements to Invariant Subspaces",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 29,
      year = 1980,
     issue = 5,
     pages = "683--692",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj29049}{article}{
     author = {Cohn, William},
      title = {Orthogonal Complements to Invariant Subspaces},
    journal = {Indiana Univ. Math. J.},
     volume = {29},
       year = {1980},
     number = {5},
      pages = {683 \ndash 692},
}