@article{GonzalezBailonHCR2012,
  author =	 {Gonzalez-Bailon, S. and Kaltenbrunner, A. and
                  Banchs, R. E.},
  title =	 {Emotions, Public Opinion and U.S. Presidential
                  Approval Rates: A 5 Year Analysis of Online
                  Political Discussions},
  journal =	 {Human Communication Research},
  year =	 2012,
  volume =	 38,
  number =	 2,
  issn =	 {1468-2958},
  url =		 {http://dx.doi.org/10.1111/j.1468-2958.2011.01423.x},
  doi =		 {10.1111/j.1468-2958.2011.01423.x},
  pages =	 {121--143},
}