ZIEWIEC, Beata. Diversity of Temporal and Territorial Social Penetration Rates of Information Technology in Europe. Journal of Telecommunications and Information Technology, Warsaw, Poland, v. 51, n. 1, p. 85–97, 2013. DOI: 10.26636/jtit.2013.1.1206. Disponível em: https://www.jtit.pl/jtit/article/view/1206. Acesso em: 13 jun. 2026.