BibTeX

@ARTICLE{iumj5028,
    author = "R. Douglas and Constanze Liaw",
     title = "A geometric approach to finite rank unitary perturbations",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 62,
      year = 2013,
     issue = 1,
     pages = "333--354",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "44A15, 47A20, 47A55",
}

amsrefs

\bib{iumj5028}{article}{
     author = {Douglas, R.},
     author = {Liaw, Constanze},
      title = {A geometric approach to finite rank unitary perturbations},
    journal = {Indiana Univ. Math. J.},
     volume = {62},
       year = {2013},
     number = {1},
      pages = {333 \ndash 354},
}