BibTeX

@ARTICLE{iumj29027,
    author = "Luis Caffarelli and Avner Friedman",
     title = "Regularity of the Free Boundary of a Gas Flow in an n-Dimensional Porous Medium",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 29,
      year = 1980,
     issue = 3,
     pages = "361--391",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj29027}{article}{
     author = {Caffarelli, Luis},
     author = {Friedman, Avner},
      title = {Regularity of the Free Boundary of a Gas Flow in an n-Dimensional Porous Medium},
    journal = {Indiana Univ. Math. J.},
     volume = {29},
       year = {1980},
     number = {3},
      pages = {361 \ndash 391},
}