BibTeX

@ARTICLE{iumj23064,
    author = "C. Putnam",
     title = "Norm Denseness of Reducible Hyponormal Operators",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 23,
      year = 1974,
     issue = 8,
     pages = "767--769",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj23064}{article}{
     author = {Putnam, C.},
      title = {Norm Denseness of Reducible Hyponormal Operators},
    journal = {Indiana Univ. Math. J.},
     volume = {23},
       year = {1974},
     number = {8},
      pages = {767 \ndash 769},
}