BibTeX

@ARTICLE{iumj2088,
    author = "Donatella Danielli and Nicola Garofalo and Sandro Salsa",
     title = "Variational inequalities with lack of ellipticity. Part I: Optimal interior regularity and non-degeneracy of the free boundary",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 52,
      year = 2003,
     issue = 2,
     pages = "361--398",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "35J85; 35H20; 43A85;",
}

amsrefs

\bib{iumj2088}{article}{
     author = {Danielli, Donatella},
     author = {Garofalo, Nicola},
     author = {Salsa, Sandro},
      title = {Variational inequalities with lack of ellipticity. Part I: Optimal interior regularity and non-degeneracy of the free boundary},
    journal = {Indiana Univ. Math. J.},
     volume = {52},
       year = {2003},
     number = {2},
      pages = {361 \ndash 398},
}