BibTeX

@ARTICLE{iumj17031,
    author = "Simon Levin",
     title = "Uniqueness under Nonlinear Boundary Conditions for Elliptic Problems",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 17,
      year = 1968,
     issue = 6,
     pages = "507--521",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj17031}{article}{
     author = {Levin, Simon},
      title = {Uniqueness under Nonlinear Boundary Conditions for Elliptic Problems},
    journal = {Indiana Univ. Math. J.},
     volume = {17},
       year = {1968},
     number = {6},
      pages = {507 \ndash 521},
}