1) Parker, Edwin B.: Technology assessment or institutional change? In Communications Technology and Social Policy; Understanding the New "Cultural Revolution", Gerbner, G., Gross, L. P. and Melody, W.H.(Eds.), New York, John Wiley & Sons, 1973, Chapter 34
2) Orwell, George: Nineteen Eighty-Four. New York, Harcourt Brace, 1949
3) Fuller, R. Buckminster : Operating Manual for Spaceship Earth. New York, Simon and Schuster, 1969
4) Porat, M.: The information economy, Unpublished paper. Stanford, California Institute for Communication Research, Stanford University, 1974
5) Machlup, Fritz : The production and distribution of knowledge in the United States. Princeton, Princeton University Press, 1962
