@article{Carbonell-etal81,
  author	= {Carbonell, Jaime G. and Cullingford, R. E. and Gershman, A. G.},
  month		= jul,
  year		= {1981},
  title		= {Steps towards knowledge-based machine translation},
  journal	= {IEEE transactions: PAMI},
  volume	= {3},
  number	= {4}
}