BibTeX

@ARTICLE{iumj42005,
    author = "Dmitry Yakubovich",
     title = "Spectral Properties of Smooth Perturbations of Normal Operators with Planar Lebesgue Spectrum",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 42,
      year = 1993,
     issue = 1,
     pages = "55--83",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj42005}{article}{
     author = {Yakubovich, Dmitry},
      title = {Spectral Properties of Smooth Perturbations of Normal Operators with Planar Lebesgue Spectrum},
    journal = {Indiana Univ. Math. J.},
     volume = {42},
       year = {1993},
     number = {1},
      pages = {55 \ndash 83},
}