@article{nagy2007new,
  title={New aspects of the continuous phase transition in the scalar noise model (SNM) of collective motion},
  author={Nagy, M{\'a}t{\'e} and Daruka, Istv{\'a}n and Vicsek, Tam{\'a}s},
  journal={Physica A: Statistical Mechanics and its Applications},
  volume={373},
  pages={445--454},
  year={2007},
  publisher={North-Holland}
}