@article{sequencelevelcontrastivelearningfortext,
  title = {Sequence Level Contrastive Learning for Text Summarization},
  author = {Shusheng Xu and Xingxing Zhang and Yi Wu and Furu Wei},
  year = {2021},
  eprint = {2109.03481},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2109.03481v4},
}