@inproceedings{graphbasedsemisupervisedlearningof,
  title = {Graph-based Semi-Supervised Learning of Translation Models from Monolingual Data},
  author = {Avneesh Saluja and Hany Hassan and Kristina Toutanova and Chris Quirk},
  year = {2014},
  booktitle = {ACL 2014 6},
  url = {https://aclanthology.org/P14-1064},
}