Comércio electrónico na Internet / Miguel Mira da Silva...[et al.]
Tratados que instituíram a União Europeia : alterados pelo Tratado de Amesterdão, / [ed. lit.] Livraria da Universidade
Quality of service in telecommunications / A. P. Oodan, K. E. Ward and A. W. Mullee
The comprehensive guide to wireless resources : definitions and acronyms and national trade shows, association, and publication listings / Lawrence Harte and Steven Kellog