@article{headtextexploringhandsfreetextentry,
  title = {HeadText: Exploring Hands-free Text Entry using Head Gestures by Motion Sensing on a Smart Earpiece},
  author = {Songlin Xu and Guanjie Wang and Ziyuan Fang and Guangwei Zhang and Guangzhu Shang and Rongde Lu and Liqun He},
  year = {2022},
  eprint = {2205.09978},
  archivePrefix = {arXiv},
  url = {https://arxiv.org/abs/2205.09978v2},
}