@techreport{Waltz76-PLANES,
  author	= {Waltz, D. L. and Finin, T. and Green, F. and Conrad, F. and Goodman, B. and Hadden, G.},
  month		= jul,
  year		= {1976},
  title		= {The PLANES System: Natural Language Access to a Large Data Base},
  number	= {T-34},
  note		= {Champaign/Urbana},
  institution	= {University of Illinois, Coordinated Science Lab.}
}