@article{Bar08AI,
  abstract = "Semi-synchronously rational relations generalise synchronised rational relations in a natural way. We discuss here some of their basic properties, among them a "Cobham-Semenov-like" dichotomy theorem. Our main result is a characterisation of bijective semi-synchronously rational transductions as those bijections mapping regular relations to regular ones and non-regular relations to non-regular ones.",
  author = "Vince Barany",
  doi = "10.1007/s00236-008-0083-2",
  journal = "Acta Informatica",
  publisher = "Springer",
  title = "Semi-synchronous transductions",
  url = "http://web.comlab.ox.ac.uk/people/vince.barany/sst_AI.pdf",
  year = "2008",
}