1. The Telecommunications Industry;Brock,1981
2. A “dream” business that's just a phone call away;Wilke;Business Week,1986
3. Europe may motivate US effort;Gitlin;Communications News,1989
4. Critical Connections: Communication for the Future;US Congress, Office of Technology Assessment,1990
5. Critical Connections: Communication for the Future;US Congress, Office of Technology Assessment,1990