Bulletin d'information sur la technique des télécommunications / Siemens & Halske AG
Plessey Remotecopier : The most business-like 'fax' system / Plessey Communications
The proceedings of the european computer communications conference held in London, July 1984 : Networks 84 / Online Conferences Ltd
Circuitos integrados : aplicações prácticas / F. Bergtold; trad. Conceição Jardim, Eduardo Nogueira