The Waves and Cycles of COVID-19 Pandemic: A Phase Synchronization Approach. Austrian Journal of Statistics, [S. l.], v. 52, n. 3, p. 25–38, 2023. DOI: 10.17713/ajs.v52i3.1450. Disponível em: https://www.ajs.or.at/index.php/ajs/article/view/1450. Acesso em: 23 may. 2026.