@InProceedings{perrault:1983:ACL,
  author    = {C. Raymond Perrault},
  title     = {On the Mathematical Properties of Linguistic Theories},
  booktitle = {Proceedings of the 21st Annual Meeting of the Association for Computational Linguistics},
  month     = {June},
  year      = {1983},
  address   = {Cambridge, Massachusetts, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {98--105},
  url       = {http://www.aclweb.org/anthology/P83-1015},
  doi       = {10.3115/981311.981331}
}