BibTeX

@ARTICLE{iumj24009,
    author = "A. Murray and M. Protter",
     title = "Asymptotic Behavior and the Cauchy Problem for Ultrahyperbolic Operators",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 24,
      year = 1975,
     issue = 2,
     pages = "115--130",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj24009}{article}{
     author = {Murray, A.},
     author = {Protter, M.},
      title = {Asymptotic Behavior and the Cauchy Problem for Ultrahyperbolic Operators},
    journal = {Indiana Univ. Math. J.},
     volume = {24},
       year = {1975},
     number = {2},
      pages = {115 \ndash 130},
}