ATEDE, A. O.; OMAME, A.; INYAMA, S. C. A fractional order vaccination model for COVID-19 incorporating environmental transmission: a case study using Nigerian data. Bulletin of Biomathematics, [S. l.], v. 1, n. 1, p. 78–110, 2023. DOI: 10.59292/bulletinbiomath.2023005. Disponível em: https://bulletinbiomath.org/index.php/bulletinbiomath/article/view/5. Acesso em: 22 dec. 2024.