@InProceedings {Alvarado2004Sketch,
  author =       {Christine Alvarado},
  title =        {Sketch Recognition User Interfaces: Guidelines for Design and Development},
  booktitle =    {Making Pen-Based Interaction Intelligent and Natural},
  year =         {2004},
  publisher =    {AAAI Fall Symposium},
  OPTkeyword =   {general sketch recognition},
  address =	 {Menlo Park, California},
  month =	 {October 21-24},
  pages =	{8-14},
}