A. Cavalcanti, R. Mello, P. Miranda, and F. Freitas.
" Automatic Feedback Analysis in Online Learning Environments", in <em>Proceedings of the 31st Brazilian Symposium on Computers in Education</em>, Online, 2020, pp. 892-901, doi: <a href="https://doi.org/10.5753/cbie.sbie.2020.892">https://doi.org/10.5753/cbie.sbie.2020.892</a>.