@inbook{Sulis2015,
author = {Sulis, E. and Lai, M. and Vinai, M. and Sanguinetti, M.},
title= {Exploring sentiment in social media and official statistics: A general framework},
year = {2015},
editor = {Bosco, C.},
editor = {Cambria, E.},
editor = {Damiano, R.},
editor = {Patti, V.},
editor = {Rosso, P.},
booktitle = {Proceedings of the 2nd International Conference on Emotion and Sentiment in Social and Expressive Media (ESSEM 2015)},
address = {New York},
publisher = {ACM},
pages = {96--105},
}