@article{co2sumcontrastivelearningforfactual,
  title = {CO2Sum:Contrastive Learning for Factual-Consistent Abstractive Summarization},
  author = {Wei Liu and Huanqin Wu and Wenjing Mu and Zhen Li and Tao Chen and Dan Nie},
  year = {2021},
  eprint = {2112.01147},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2112.01147v2},
}