@article{zipfslawholdsforphrasesnotwords,
  title = {Zipf's law holds for phrases, not words},
  author = {Jake Ryland Williams and Paul R. Lessard and Suma Desu and Eric Clark and James P. Bagrow and Christopher M. Danforth and Peter Sheridan Dodds},
  year = {2014},
  eprint = {1406.5181},
  archivePrefix = {arXiv},
  url = {http://arxiv.org/abs/1406.5181v2},
}