@InProceedings{rush-chang-collins:2013:EMNLP,
  author    = {Rush, Alexander  and  Chang, Yin-Wen  and  Collins, Michael},
  title     = {Optimal Beam Search for Machine Translation},
  booktitle = {Proceedings of the 2013 Conference on Empirical Methods in Natural Language Processing},
  month     = {October},
  year      = {2013},
  address   = {Seattle, Washington, USA},
  publisher = {Association for Computational Linguistics},
  pages     = {210--221},
  url       = {http://www.aclweb.org/anthology/D13-1022}
}