@article{williams2015b,
  title={Text mixing shapes the anatomy of rank-frequency distributions},
  author={Jake Williams and Jim Bagrow and Chris Danforth and Peter Sheridan Dodds},
  journal={Physical Review E},
  volume={91},
  pages={052811},
  arXiv={http://arxiv.org/abs/1409.3870},
  journalpage={http://journals.aps.org/pre/abstract/10.1103/PhysRevE.91.052811},
  year={2015},
  citations={1}
}