Reference. Profunctors, open maps and bisimulation [cattani-winskel-2005]

@article{cattani-winskel-2005,
  author = {Cattani, Gian Luca and Winskel, Glynn},
  publisher = {Cambridge University Press},
  year = {2005},
  doi = {10.1017/S0960129505004718},
  journal = {Mathematical Structures in Computer Science},
  number = {3},
  pages = {553--614},
  title = {Profunctors, open maps and bisimulation},
  volume = {15},
}