F. Albuquerque, M. Campêlo, and T. Figueiredo.
" O Problema do Caminho Positivo Mínimo", in <em>Proceedings of the 8th Theory of Computation Meeting</em>, João Pessoa/PB, 2023, pp. 89-93, doi: <a href="https://doi.org/10.5753/etc.2023.230579">https://doi.org/10.5753/etc.2023.230579</a>.