CAVALLO, M. Smart sustainable cities: synergies between circular economy, innovative policies and European projects . International Journal of Business and Management (IJBM), [S. l.], v. 1, n. 2, p. 1–13, 2022. DOI: 10.56879/ijbm.v1i2.9. Disponível em: https://iessociety.org/index.php/IJBM/article/view/9. Acesso em: 30 jun. 2025.