@inbook{Tumasjan2011,
author = {Tumasjan, A. and Sprenger, T.O. and Sandner, P.G. and Welpe, I.M.},
title= {Predicting elections with Twitter: What 140 characters reveal about political sentiment},
year = {2011},
editor = {Nicolov, N.},
editor = {Shanahan, J.G.},
editor = {Adamic, L.},
editor = {Baeza-Yates, R.},
editor = {Counts, S.},
booktitle = {Proceedings of the 5th International Conference on Weblogs and Social Media},
address = {Menlo Park},
publisher = {AAAI Press},
pages = {178--185},
}