Reference. Neural machine translation of rare words with subword units [sennrich2016neural]

@inproceedings{sennrich2016neural,
  title = {Neural Machine Translation of Rare Words with Subword Units},
  author = {Sennrich, Rico and Haddow, Barry and Birch, Alexandra},
  booktitle = {Proceedings of the 54th Annual Meeting of the Association for Computational Linguistics (Volume 1: Long Papers)},
  year = {2016},
  url = {https://aclanthology.org/P16-1162/}
}