@article{CWWWZ,
  title = "Graphical Calculus for Quantum Key Distribution (Extended Abstract)",
  author = "Bob Coecke and Quanlong Wang and Baoshan Wang and Yongjun Wang and Qiye Zhang",
  year = "2011",
  journal = "Electronic Notes in Theoretical Computer Science",
  number = "2",
  pages = "231 - 249",
  url = "http://www.sciencedirect.com/science/article/B75H1-523KWFB-4/2/6197b31b523ba8c0c9b27a2e1e5be1e0",
  volume = "270",
}