Composition, concentration and classification of smart and sustainable urban mass transport in four smart cities. Research, Society and Development, [S. l.], v. 10, n. 13, p. e37101320634, 2021. DOI: 10.33448/rsd-v10i13.20634. Disponível em: https://rsdjournal.org/rsd/article/view/20634. Acesso em: 5 dec. 2025.