1. The structure of scientific revolutions. International encyclopedia of unified science, vol. II, no. 2 (orig. 1962);Kuhn,1970
2. Reflections on my critics;Kuhn,1978
3. Multiple perspective concept: with applications to technology assessment and other decision areas;Linstone;Technological Forecasting and Social Change,1981
4. The futures field of research;Malaska;Futures Research Quarterly,1995
5. The futures field: searching for definitions and boundaries;Amara;The Futurist,1981