@article{Claassen97,
  author	= {Claassen, W.},
  title		= {A natural language generator in ROIS},
  journal	= {Links: The ROIS newsletter},
  year		= {1997},
  volume	= {2},
  month		= feb,
  note		= {(ed. E.J. van der Haring) Catholic University of Nijmegen}
}