BibTeX

@ARTICLE{iumj28049,
    author = "C. Putnam",
     title = "Hyponormal Operators and Spectral Multiplicity",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 28,
      year = 1979,
     issue = 5,
     pages = "701--709",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj28049}{article}{
     author = {Putnam, C.},
      title = {Hyponormal Operators and Spectral Multiplicity},
    journal = {Indiana Univ. Math. J.},
     volume = {28},
       year = {1979},
     number = {5},
      pages = {701 \ndash 709},
}