C. Silva, S. Siqueira, and B. Nunes.
" Complexity of digital resources: an analysis based on their conceptual networks", in <em>Anais dos Workshops do X Congresso Brasileiro de Informática na Educação</em>, Online, 2021, pp. 51-60, doi: <a href="https://doi.org/10.5753/wcbie.2021.219033">https://doi.org/10.5753/wcbie.2021.219033</a>.