@Inproceedings{EPTCS195.11,
  author    = {Cunningham, Oscar and Heunen, Chris},
  year      = {2015},
  title     = {Axiomatizing complete positivity},
  editor    = {Heunen, Chris and Selinger, Peter and Vicary, Jamie},
  booktitle = {{\rm Proceedings of the 12th International Workshop on}
               Quantum Physics and Logic,
               {\rm Oxford, U.K., July 15-17, 2015}},
  series    = {Electronic Proceedings in Theoretical Computer Science},
  volume    = {195},
  publisher = {Open Publishing Association},
  pages     = {148-157},
  doi       = {10.4204/EPTCS.195.11},
}