@InProceedings{WangCheManning-AAAI13,
  author    = {Mengqiu Wang and Wanxiang Che and Christopher D. Manning},
  title     = {Effective Bilingual Constraints for Semi-supervised Learning of Named Entity Recognizers},
  booktitle = {Association for the Advancement of Artificial Intelligence (AAAI)},
  year      = {2013},
  url       = {http://nlp.stanford.edu/pubs/aaai13-wang.pdf}
}