BARRELL, K.; LEMMENS, W. The Future of Digital Services Delivery. Journal of Telecommunications and the Digital Economy, [S. l.], v. 3, n. 3, p. 31–46, 2015. DOI: 10.18080/jtde.v3n3.22. Disponível em: https://jtde.telsoc.org/index.php/jtde/article/view/22. Acesso em: 27 nov. 2024.