@article{farkas2006initiating,
  title={Initiating a Mexican wave: An instantaneous collective decision with both short-and long-range interactions},
  author={Farkas, Ill{\'e}s J and Vicsek, Tam{\'a}s},
  journal={Physica A: Statistical Mechanics and its Applications},
  volume={369},
  number={2},
  pages={830--840},
  year={2006},
  publisher={Elsevier}
}