MONEIM, Islam A. An SEIR model with infectious latent and a periodic vaccination strategy . Mathematical Modelling and Analysis, [S. l.], v. 26, n. 2, p. 236–252, 2021. DOI: 10.3846/mma.2021.12945. Disponível em: https://journals.vilniustech.lt/index.php/MMA/article/view/12945. Acesso em: 27 jun. 2025.