@inproceedings{enliveningredundantheadsinmultiheadself,
  title = {Enlivening Redundant Heads in Multi-head Self-attention for Machine Translation},
  author = {Tianfu Zhang and Heyan Huang and Chong Feng and Longbing Cao},
  year = {2021},
  booktitle = {EMNLP 2021 11},
  url = {https://aclanthology.org/2021.emnlp-main.260},
}