Gabriel Sales, Francisco Victor Pinheiro, Emanuel Coutinho, and Rossana Andrade. 2026.
 SIVEIN: A Vaccination Information System to Support Indigenous Health in Northern Tocantins. In <em>Companion Proceedings of the 22nd Brazilian Symposium on Information Systems</em>, May 25, 2026, Vitória/ES, Brasil. SBC, Porto Alegre, Brasil, 261-271. DOI: <a href="https://doi.org/10.5753/sbsi_estendido.2026.249064">https://doi.org/10.5753/sbsi_estendido.2026.249064</a>.