BibTeX

@ARTICLE{iumj15038,
    author = "A. Jeffrey",
     title = "The Development of Singularities of Solutions of Nonlinear Hyperbolic Equations of Order Greater Than Unity",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 15,
      year = 1966,
     issue = 4,
     pages = "585--598",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj15038}{article}{
     author = {Jeffrey, A.},
      title = {The Development of Singularities of Solutions of Nonlinear Hyperbolic Equations of Order Greater Than Unity},
    journal = {Indiana Univ. Math. J.},
     volume = {15},
       year = {1966},
     number = {4},
      pages = {585 \ndash 598},
}