@inproceedings{nictsneuralmachinetranslationsystemsfor,
  title = {NICT’s Neural Machine Translation Systems for the WAT21 Restricted Translation Task},
  author = {Zuchao Li and Masao Utiyama and Eiichiro Sumita and Hai Zhao},
  year = {2021},
  booktitle = {ACL (WAT) 2021 8},
  url = {https://aclanthology.org/2021.wat-1.4},
}