VIEIRA, J. P. A.; MOURA, R. S. Analysis of Aspect Extraction Methods in Regular Opinions. iSys - Brazilian Journal of Information Systems, [S. l.], v. 13, n. 3, p. 82–97, 2020. DOI: 10.5753/isys.2020.796. Disponível em: https://journals-sol.sbc.org.br/index.php/isys/article/view/796. Acesso em: 3 jul. 2024.