Lazo, M. J., & Cezaro, A. D. (2021). Why Can We Observe a Plateau Even in an Out of Control Epidemic Outbreak? A SEIR Model With the Interaction of n Distinct Populations for Covid-19 in Brazil. Trends in Computational and Applied Mathematics, 22(1), 109–123. https://doi.org/10.5540/tcam.2021.022.01.00109