@inproceedings{advancesandchallengesinunsupervised,
  title = {Advances and Challenges in Unsupervised Neural Machine Translation},
  author = {Rui Wang and Hai Zhao},
  year = {2021},
  booktitle = {EACL 2021 2},
  url = {https://aclanthology.org/2021.eacl-tutorials.5},
}