@misc{sennrich2015neural,
  title={Neural Machine Translation of Rare Words with Subword Units},
  author={Rico Sennrich and Barry Haddow and Alexandra Birch},
  year={2015},
  eprint={1508.07909},
  archivePrefix={arXiv},
  primaryClass={cs.CL},
  url={https://arxiv.org/abs/1508.07909}
}