R. Costa and T. Pardo.
" Lexicon-based methods for extracting opinion aspects for the Portuguese language", in <em>Proceedings of the 9th Brazilian Workshop on Social Network Analysis and Mining</em>, Cuiabá, 2020, pp. 61-72, doi: <a href="https://doi.org/10.5753/brasnam.2020.11163">https://doi.org/10.5753/brasnam.2020.11163</a>.