J. Nobre, L. Soares, B. Huaytalla, E. S. Júnior, and L. Granville.
" On the Privacy of National Contact Tracing COVID-19 Applications: The Coronavírus-SUS Case", in Anais da XIX Escola Regional de Redes de Computadores, Charqueadas/RS, 2021, pp. 115-120, doi: https://doi.org/10.5753/errc.2021.18552.