@inproceedings{Herweg91-acl,
  author	= {Herweg, Michael},
  editor	= {Pustejovsky, James and Bergler, Sabine},
  month		= jun,
  year		= {1991},
  title		= {Aspectual requirements of temporal connectives: evidence for a two-level approach to semantics},
  booktitle	= {Proceedings of the 1991 ACL Workshop on Lexical Semantics and Knowledge Representation},
  pages		= {152--164},
  address	= {Berkeley, CA}
}