@article{nagy2013context,
  title={Context-dependent hierarchies in pigeons},
  author={Nagy, M{\'a}t{\'e} and V{\'a}s{\'a}rhelyi, G{\'a}bor and Pettit, Benjamin and Roberts-Mariani, Isabella and Vicsek, Tam{\'a}s and Biro, Dora},
  journal={Proceedings of the National Academy of Sciences},
  volume={110},
  number={32},
  pages={13049--13054},
  year={2013},
  publisher={National Acad Sciences}
}