Jéferson Nobre, Laura Soares, Briggette Huaytalla, Elvandi S. Júnior, and Lisandro Granville. 2021.
 On the Privacy of National Contact Tracing COVID-19 Applications: The Coronavírus-SUS Case. In <em>Proceedings of the 19th Regional School of Computer Networks</em>, October 27, 2021, Charqueadas/RS, Brasil. SBC, Porto Alegre, Brasil, 115-120. DOI: <a href="https://doi.org/10.5753/errc.2021.18552">https://doi.org/10.5753/errc.2021.18552</a>.