SAPIO, B.; PALOMBINI, I.; CIOFFI, S. IBIS: International Benchmarking of the Information Society. Observatorio (OBS*), [S. l.], v. 1, n. 1, 2007. DOI: 10.15847/obsOBS11200741. Disponível em: https://obs.obercom.pt/index.php/obs/article/view/41. Acesso em: 2 dec. 2022.