1. Science the endless frontier, A report to the President by Vannevar Bush, Director of the Office of Scientific Research and Development;Bush,1945
2. Third generation foresight: integrating the socio-economic dimension;Georghiou,2001
3. FOR-LEARN Online Guide (http://forlearn.jrc.es/guide/0_home/index.htm).
4. Futures research methodology, AC/UNU Millennium Project, Version 2.0,2003
5. FTA assumptions: Methods and approaches in the context of achieving outcomes;Rader,2006