The e-government and the new challenges of the european single market . Journal of Information Systems and Technology Management, [S. l.], v. 6, n. 1, p. 111–115, 2009. DOI: 10.4301/S1807-17752009000100007. Disponível em: https://revistas.usp.br/jistem/article/view/12847.. Acesso em: 28 dec. 2024.