Evolução das redes e serviços de telecomunicações na perspectiva de implementação da ISDN : cenário para o caso português / José Manuel da Graça Bau
ASPLOS-V proceedings / Fifth International Conference on Architectural Support for Programming Languages and Operating Systems, Boston, Massachusetts, October 12-15, 1992
Telegeography 1993 : global telecommunications traffic statistics & commentary / ed. Gregory C. Staple
Telegeography 1994 : global telecommunications traffic statistics & commentary / ed. Gregory C. Staple