M. Freitas and R. Andreão.
" Automating the Processing of Raw Text from a Complaint Service", in <em>Proceedings of the 4th Regional School on Informatics of Rio de Janeiro</em>, Online, 2021, pp. 72-79, doi: <a href="https://doi.org/10.5753/eri-rj.2021.18777">https://doi.org/10.5753/eri-rj.2021.18777</a>.