Aires, N., 		Lopes, L., 		Machado, E., 		Sales, P., 		Jr, M., & 		Silva, C.
(2015).
 Proposal Sentiment Analysis Use in Developing a new Sustainability Metrics.
In <em>Proceedings of the 11th Brazilian Symposium on Information Systems</em>, (pp. 455-458). Porto Alegre: SBC.
doi:10.5753/sbsi.2015.5890