@article{Webber83,
  author	= {Webber, Bonnie L. and Joshi, Aravind K. and Mays, Eric and McKeown, Kathleen R.},
  year		= {1983},
  title		= {Extended Natural Language Data Base Interactions},
  journal	= {Comp. and Math with Appls.},
  volume	= {9},
  number	= {1},
  pages		= {233--244}
}