@TechReport{grady2003:anisotropic-TR,
  author =       {Grady, Leo and Schwartz, Eric},
  title =        {Anisotropic interpolation on graphs: The
                  combinatorial {Dirichlet} problem},
  institution =  {Department of Cognitive and Neural Systems, Boston
                  University},
  year =         2003,
  number =       {CAS/CNS-TR-03-014},
  address =      {Boston, MA},
  month =        Jul,
  datestr =      {200305},
}