@InProceedings {Ouyang2007Chem,
   author =       {Tom Y. Ouyang and Randall Davis},
   title =        {Recognition of Hand Drawn Chemical Diagrams},
   booktitle =    {Proceedings of AAAI},
   journal =      {AAAI 2007},
   year =         {2007},
   pages =        {846-851},
 }