Soares, A. L. O., et al. “Numerical Simulations of the SEIR Epidemiological Model With Population Heterogeneity to Assess the Efficiency of Social Isolation in Controlling COVID-19 in Brazil”. Trends in Computational and Applied Mathematics, vol. 23, no. 2, June 2022, pp. 257-72, doi:10.5540/tcam.2022.023.02.00257.