@inproceedings{dealingwithunknownwordsinstatistical,
  title = {Dealing with unknown words in statistical machine translation},
  author = {Jo{\~a}o Silva and Lu{\'\i}sa Coheur and {\^A}ngela Costa and Isabel Trancoso},
  year = {2012},
  booktitle = {LREC 2012 5},
  url = {https://aclanthology.org/L12-1585},
}