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@Comment{refnotes,
  namespace = "references"
}
 
@Book{Knuth68,
  author    = {Donald E. Knuth},
  title     = {The Art of Computer Programming, Volume 1: Fundamental Algorithms},
  publisher = {Addison-Wesley},
  year      = {1968},
  isbn      = {0-201-03801-3},
  url       = {http://example.com/Knuth68}
}
 
@inproceedings{abramsky2004categorical,
  title={A categorical semantics of quantum protocols},
  author={Abramsky, Samson and Coecke, Bob},
  booktitle={Proceedings of the 19th Annual IEEE Symposium on Logic in Computer Science, 2004.},
  pages={415--425},
  year={2004},
  organization={IEEE}
}