@Inproceedings{EPTCS52.4,
  author    = {Coecke, Bob and Kissinger, Aleks and Merry, Alex and Roy, Shibdas},
  year      = {2011},
  title     = {The GHZ/W-calculus contains rational arithmetic},
  editor    = {Ablayev, Farid and Coecke, Bob and Vasiliev, Alexander},
  booktitle = {{\rm Proceedings CSR 2010 Workshop on}
               High Productivity Computations,
               {\rm Kazan, Russia, June 21-22, 2010}},
  series    = {Electronic Proceedings in Theoretical Computer Science},
  volume    = {52},
  publisher = {Open Publishing Association},
  pages     = {34-48},
  doi       = {10.4204/EPTCS.52.4},
}