R. Ladeira, L. Tillmann, and J. Espig.
" The use of a CTF in formal education: challenges and perspectives", in <em>Proceedings of the 10th Regional School on Informatics of Espírito Santo</em>, Espírito Santo/ES, 2025, pp. 154-157, doi: <a href="https://doi.org/10.5753/eries.2025.15989">https://doi.org/10.5753/eries.2025.15989</a>.