@inproceedings{Dorr91-acl,
  author	= {Dorr, Bonnie J.},
  year		= {1991},
  title		= {A Two-Level Knowledge Representation for Machine Translation: Lexical Semantics and Tense/Aspect},
  booktitle	= {29th. Annual Meeting of the Association for Computational Linguistics},
  note		= {tense-aspect},
  address	= {Berkeley, California}
}