HARRISON, Alexander. Predicting US Covid-19 Infection Rate using Time-delay Recurrence Simulation. International Journal of Scientific Research in Biological Sciences, [S. l.], v. 7, n. 5, p. 1–5, 2020. Disponível em: https://ijsrbs.isroset.org/index.php/j/article/view/391. Acesso em: 20 may. 2025.