VUOKKO, R.; SARANTO, K.; PALOJOKI, S. Features of COVID-19 applications and their impact on contact tracing: results of preliminary review . Finnish Journal of eHealth and eWelfare, [S. l.], v. 13, n. 4, p. 347–359, 2021. DOI: 10.23996/fjhw.109253. Disponível em: https://journal.fi/finjehew/article/view/109253. Acesso em: 28 jan. 2022.