@inproceedings{penn:2002:ACL,
  author    = {Penn, Gerald},
  title     = {Generalized Encoding of Description Spaces and its Application to Typed Feature Structures},
  booktitle = {Proceedings of the 40th Annual Meeting of the Association for Computational Linguistics (ACL)},
  year      = 2002,
  pages     = {64--71}
}