BibTeX

@ARTICLE{iumj39010,
    author = "J. William Helton and Donald Marshall",
     title = "Frequency Domain Design and Analytic Selections",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 39,
      year = 1990,
     issue = 1,
     pages = "157--184",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj39010}{article}{
     author = {Helton, J. William},
     author = {Marshall, Donald},
      title = {Frequency Domain Design and Analytic Selections},
    journal = {Indiana Univ. Math. J.},
     volume = {39},
       year = {1990},
     number = {1},
      pages = {157 \ndash 184},
}