O mercado das TMT's em Portugal / ed. Reportium XXI Consulting; coord. Rui Arnaldo Rosa Pires, João Maria de Oliveira Martins
European telecom operators as IT services providers / Jean Claude Delcroix
Business VoIP market : opportunities & challenges / Fréderic Faivre, Julien Grivolas, Bruno Teyton
2004 european mid-market enterprise survey shows [documento electrónico] / Camille Mendler
Mobile TV : market analysis and forecast 2004-2009 / [ed.] Visiongain