@Inbook{Moraes2016,
	author={Silvia M. W. Moraes and Andr{\'e} L. L. Santos and Matheus Redecker and Rackel M. Machado Felipe Meneguzzi},
	editor={Silva, Jo{\~a}o and Ribeiro, Ricardo and Quaresma, Paulo and Adami, Andr{\'e} and Branco, Ant{\'o}nio},
	title={Comparing Approaches to Subjectivity Classification: A Study on Portuguese Tweets},
	bookTitle={Proceedings of the 12th International Conference Computational Processing of the Portuguese Language},
	year={2016},
	publisher={Springer International Publishing},
	pages= {86--94},
	isbn={978-3-319-41552-9},
	doi={10.1007/978-3-319-41552-9_8},
	url={http://dx.doi.org/10.1007/978-3-319-41552-9_8}
}