1. ITA—Institut für Technikfolgen-Abschätzung: Technologie Delphi (vols. 1–3), Bundesministerium für Wissenschaft und Verkehr, Wien, 1998.
2. An experimental application of the Delphi method to the use of experts;Dalkey;Manage. Sci.,1963
3. The Delphi Method: An Experimental Study of Group Opinion;Dalkey,1969
4. The Delphi method: III. Use of self-ratings to improve group estimates;Dalkey;Technol. Forecast.,1970
5. Comparison of Group Judgement Techniques with Short-run Predictions and Almanac Questions;Dalkey,1971