F. Santiago, J. Queiroz, M. Cardoso, and W. Dunga.
" OBMEP in Graphs: From Extraction to Insight", in <em>Companion Proceedings of the 13th Brazilian Congress on Computers in Education</em>, Rio de Janeiro/RJ, 2024, pp. 216-220, doi: <a href="https://doi.org/10.5753/cbie_estendido.2024.244439">https://doi.org/10.5753/cbie_estendido.2024.244439</a>.