BibTeX

@ARTICLE{iumj23046,
    author = "H. Hilden and L. Wallen",
     title = "Some Cyclic and Non-Cyclic Vectors of Certain Operators",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 23,
      year = 1974,
     issue = 7,
     pages = "557--565",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj23046}{article}{
     author = {Hilden, H.},
     author = {Wallen, L.},
      title = {Some Cyclic and Non-Cyclic Vectors of Certain Operators},
    journal = {Indiana Univ. Math. J.},
     volume = {23},
       year = {1974},
     number = {7},
      pages = {557 \ndash 565},
}