@inbook{Quercia2012,
author = {Quercia, D. and Crowcroft, J. and Ellis, J. and Capra, L.},
title= {Tracking ‘gross community happiness’ from tweets},
year = {2012},
doi = {10.1145/2145204.2145347},
editor = {Gergle, D.},
editor = {Ringel Morris, M.},
editor = {Bjørn, P.},
editor = {Konstan, J.},
booktitle = {Proceedings of the ACM 2012 Conference on Computer Supported Cooperative Work (CSCM 2012)},
address = {New York},
publisher = {ACM},
pages = {965--968},
}