@inproceedings{CK,
  title = "The Compositional Structure of Multipartite Quantum Entanglement",
  author = "Bob Coecke and Aleks Kissinger",
  year = "2010",
  booktitle = "Proceedings of the 37th International Colloquium on Automata, Languages and Programming (ICALP)",
  note = "Extended version: {a}rXiv:1002.2540",
  pages = "297-308",
  series = "Lecture Notes in Computer Science",
}