@inproceedings{yan2020surfingattack,
  title={Surfingattack: Interactive hidden attack on voice assistants using ultrasonic guided waves},
  author={Yan, Qiben and Liu, Kehai and Zhou, Qin and Guo, Hanqing and Zhang, Ning},
  booktitle={Network and Distributed Systems Security (NDSS) Symposium},
  year={2020}
}