@article{feng2021survey,
  title={A Survey of Data Augmentation Approaches for NLP},
  author={Feng, Steven Y and Gangal, Varun and Wei, Jason and Chandar, Sarath and Vosoughi, Soroush and Mitamura, Teruko and Hovy, Eduard},
  journal={Findings of ACL},
  year={2021}
}