@InProceedings{gao-koehn-birch:2011:EMNLP,
  author    = {Gao, Yang  and  Koehn, Philipp  and  Birch, Alexandra},
  title     = {Soft Dependency Constraints for Reordering in Hierarchical Phrase-Based Translation},
  booktitle = {Proceedings of the 2011 Conference on Empirical Methods in Natural Language Processing},
  month     = {July},
  year      = {2011},
  address   = {Edinburgh, Scotland, UK.},
  publisher = {Association for Computational Linguistics},
  pages     = {857--868},
  url       = {http://www.aclweb.org/anthology/D11-1079}
}