Eurostat yearbook 2002 : the statistical guide to Europe / European Commission
Wireless Communication : the interactive multi-media CD-ROM / editor-in-chief Jean Paul Linnartz
O País em números : informação estatística 1991-2004: CD ROM / Instituto Nacional de Estatística
IEC web proforum tutorials : addressing key industry topics: ATM fundamentals: broadband access: optical networking: SS7: wireless communications / ed. IEC - International Engineering Consortium