BibTeX

@ARTICLE{iumj30018,
    author = "Ioannis Athanasopoulos",
     title = "Stability of the Coincidence Set for the Signorini Problem",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 30,
      year = 1981,
     issue = 2,
     pages = "235--247",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "",
}

amsrefs

\bib{iumj30018}{article}{
     author = {Athanasopoulos, Ioannis},
      title = {Stability of the Coincidence Set for the Signorini Problem},
    journal = {Indiana Univ. Math. J.},
     volume = {30},
       year = {1981},
     number = {2},
      pages = {235 \ndash 247},
}