BibTeX

@ARTICLE{iumj25009,
    author = "Avner Friedman",
     title = "The Shape and Smoothness of the Free Boundary for Some Elliptic Variational Inequalities",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 25,
      year = 1976,
     issue = 2,
     pages = "103--118",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj25009}{article}{
     author = {Friedman, Avner},
      title = {The Shape and Smoothness of the Free Boundary for Some Elliptic Variational Inequalities},
    journal = {Indiana Univ. Math. J.},
     volume = {25},
       year = {1976},
     number = {2},
      pages = {103 \ndash 118},
}