@inproceedings{LigozatZock92-coling,
  author	= {Ligozat, G. and Zock, M.},
  title		= {How to visualize time, tense and aspect},
  booktitle	= {Proceedings of COLING '92},
  address	= {Nantes},
  pages		= {475--482},
  year		= {1992}
}