Teleforum : revista de telecomunicações / prop. Associação de Comerciantes e Instaladores de Sistemas de Telecomunicações; dir. Armando Leal Rosa
Europolitics information society [documento electrónico] / Europolitics
SAE ARP 958 : revision D: 1999: electromagnetic interference measurement antennas, standard calibration methods / SAE - Society of Automotive Engineers
TIA/EIA telecommunications building wiring standards : global compilation / TIA - Telecommunications Industry Association