@article{lu2021robust,
  title={Robust Real-Time Group Activity Recognition of Robot Teams},
  author={Lu, Lyujian and Wang, Hua and Reily, Brian and Zhang, Hao},
  journal={Robotics and Automation Letters (RA-L)},
  volume={6},
  number={2},
  pages={2052--2059},
  year={2021},
}