1. Perceived usefulness of technological forecasting techniques;Balachandra;Technological Forecasting and Social Change,1978
2. Scenarios in systems analysis;Brown,1968
3. Supergenius: the Mega Worlds of Herman Kahn;Bruce-Briggs,2001
4. Experts in Uncertainty: Opinion and Subjective Probability in Science;Cooke,1991
5. Introduction;de Jouvenel,1963