BibTeX

@ARTICLE{iumj23069,
    author = "Haim Brezis and David Kinderlehrer",
     title = "The Smoothness of Solutions to Nonlinear Variational Inequalities",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 23,
      year = 1974,
     issue = 9,
     pages = "831--844",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj23069}{article}{
     author = {Brezis, Haim},
     author = {Kinderlehrer, David},
      title = {The Smoothness of Solutions to Nonlinear Variational Inequalities},
    journal = {Indiana Univ. Math. J.},
     volume = {23},
       year = {1974},
     number = {9},
      pages = {831 \ndash 844},
}