BibTeX

@ARTICLE{iumj2836,
    author = "Moritz Kassmann and Wolodymyr Madych",
     title = "Difference Quotients and Elliptic Mixed Boundary Problems of Second Order",
   journal = "Indiana Univ. Math. J.",
  fjournal = "Indiana University Mathematics Journal",
    volume = 56,
      year = 2007,
     issue = 3,
     pages = "1047--1082",
      issn = "0022-2518",
     coden = "IUMJAB",
   mrclass = "35J25; 35J60; 35B65; 60E05;",
}

amsrefs

\bib{iumj2836}{article}{
     author = {Kassmann, Moritz},
     author = {Madych, Wolodymyr},
      title = {Difference Quotients and Elliptic Mixed Boundary Problems of Second Order},
    journal = {Indiana Univ. Math. J.},
     volume = {56},
       year = {2007},
     number = {3},
      pages = {1047 \ndash 1082},
}