Smart cities: main rankings and improvement proposals for São Luís, Maranhão. Research, Society and Development, [S. l.], v. 10, n. 4, p. e47810414166, 2021. DOI: 10.33448/rsd-v10i4.14166. Disponível em: https://rsdjournal.org/rsd/article/view/14166. Acesso em: 5 dec. 2025.