@InProceedings{shieber-EtAl:1983:ACL,
  author    = {Stuart M. Shieber  and  Swan U. Stucky  and  Hans Uszkoreit  and  Jane J. Robinson},
  title     = {Formal Constraints on Metarules},
  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     = {22--27},
  url       = {http://www.aclweb.org/anthology/P83-1004},
  doi       = {10.3115/981311.981316}
}