BibTeX

@ARTICLE{iumj59031,
    author = "A. PliÅ›",
     title = "Non-Uniqueness in Cauchy's Problem for Differential Equations of Elliptic Type",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 9,
      year = 1960,
     issue = 4,
     pages = "557--562",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj59031}{article}{
     author = {PliÅ›, A.},
      title = {Non-Uniqueness in Cauchy's Problem for Differential Equations of Elliptic Type},
    journal = {Indiana Univ. Math. J.},
     volume = {9},
       year = {1960},
     number = {4},
      pages = {557 \ndash 562},
}