@article{helbing2000freezing,
  title={Freezing by heating in a driven mesoscopic system},
  author={Helbing, Dirk and Farkas, Ill{\'e}s J and Vicsek, Tam{\'a}s},
  journal={Physical review letters},
  volume={84},
  number={6},
  pages={1240},
  year={2000},
  publisher={American Physical Society}
}