@inproceedings{towardscontinuallearningformultilingual,
  title = {Towards Continual Learning for Multilingual Machine Translation via Vocabulary Substitution},
  author = {Xavier Garcia and Noah Constant and Ankur P. Parikh and Orhan Firat},
  year = {2021},
  booktitle = {NAACL 2021 4},
  eprint = {2103.06799},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2103.06799v1},
}