@misc{gonzalez2010arxiv,
  author =	 {Sandra Gonzalez-Bailon and Rafael E. Banchs and
                  Andreas Kaltenbrunner},
  title =	 {Emotional Reactions and the Pulse of Public Opinion:
                  Measuring the Impact of Political Events on the
                  Sentiment of Online Discussions},
  year =	 2010,
  eprint =	 {arXiv:1009.4019v1},
  url =		 {http://arxiv.org/abs/1009.4019},
  note =	 {e-print arXiv:1009.4019}
}