BibTeX

@ARTICLE{iumj23089,
    author = "Domingo Herrero",
     title = "Normal Limits of Nilpotent Operators",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 23,
      year = 1974,
     issue = 12,
     pages = "1097--1108",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj23089}{article}{
     author = {Herrero, Domingo},
      title = {Normal Limits of Nilpotent Operators},
    journal = {Indiana Univ. Math. J.},
     volume = {23},
       year = {1974},
     number = {12},
      pages = {1097 \ndash 1108},
}