W. Martins, F. Honda, F. Pires, and M. Pessoa.
" Celestial Condition: a game to practice arithmetic operations and computational thinking", in <em>Companion Proceedings of the 23rd Brazilian Symposium on Games and Digital Entertainment</em>, 2024, pp. 307-310, doi: <a href="https://doi.org/10.5753/sbgames_estendido.2024.242958">https://doi.org/10.5753/sbgames_estendido.2024.242958</a>.