Adson Esteves, Luiz  Noschang, André  Raabe, and Aluizio Filho. 2019.
 Portugol Studio: Towards an open community for research on programming learning. In <em>Proceedings of the 27th Workshop on Computing Education</em>, July 12, 2019, Belém, Brasil. SBC, Porto Alegre, Brasil, 513-522. DOI: <a href="https://doi.org/10.5753/wei.2019.6656">https://doi.org/10.5753/wei.2019.6656</a>.