@article{mitchell2013a,
  title={The Geography of Happiness: Connecting Twitter sentiment and expression, demographics, and objective characteristics of place},
  author={Lewis Mitchell and Morgan Frank and Kameron D. Harris and Peter Sheridan Dodds and Chris Danforth},
  journal={PLoS ONE},
  volume={8},
  pages={e64417},
  onlineappendices={http://www.uvm.edu/storylab/share/papers/mitchell2013a/},
  journalpage={http://www.plosone.org/article/info%3Adoi/10.1371/journal.pone.0064417},
  year={2013},
  citations={157}
}