@InProceedings{penn:2002:ACL,
  author    = {Gerald Penn},
  title     = {Generalized Encoding of Description Spaces and its Application to Typed Feature Structures},
  booktitle = {Proceedings of 40th Annual Meeting of the Association for Computational Linguistics},
  month     = {July},
  year      = {2002},
  address   = {Philadelphia, Pennsylvania, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {64--71},
  url       = {http://www.aclweb.org/anthology/P02-1009},
  doi       = {10.3115/1073083.1073096}
}