@inproceedings{Galleyetal:04a,
  author    = {Galley, Michel  and  Hopkins, Mark  and  Knight, Kevin  and  Marcu, Daniel},
  title     = {What's in a translation rule?},
  booktitle = {HLT-NAACL 2004: Main Proceedings },
  editor    = {Susan Dumais, Daniel Marcu and Salim Roukos},
  year      = 2004,
  month     = {May 2 - May 7},
  address   = {Boston, Massachusetts, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {273--280},
  url       = {http://www1.cs.columbia.edu/~galley/papers/syntax-mt.pdf}
}