@ARTICLE{Hammond2002Domain,
  author =   {Tracy Hammond},
  title =    {A Domain Description Language for Sketch
                  Recognition},
  OPTjournal =   {MIT Student Oxygen Workshop},
  journal =  {Proceedings of the 2nd Annual MIT Student Oxygen
                  Workshop},
  year =     {2002},
  OPTkeywords =  {General Sketch Recognition}
}