BUTTERWORTH, T. & BISHOP, V. (1995) Identifying the characteristics of optimum practice: findings from a survey of practice experts in nursing, midwifery and health visiting Journal of Advanced Nursing vol. 22 pp. 24- 32
Delbecq, A.L Van de Ven, A. H, Gustafson, D H Group Techniques for Program Planning: A Guide to Nominal Group and Delphi Processes, Scott, Foresman and Company, Glenview, Illinois, 1975. (Original theorists)
GOODMAN, C. (1987) The Delphi technique: a critique Journal of Advanced Nursing vol. 12 pp. 729-734
JENKINS, D. & SMITH, T. (1994) Applying Delphi methodology in family therapy research Contemporary Family Therapy, vol. 16: 5. pp. 411-430
PROCTER, S. & HUNT, M. (1994) Using the Delphi survey technique to develop a professional definition of nursing for analysing nursing work load Journal of Advanced Nursing vol. 19 pp. 1003-1014
RIGGS, W. E. (1983) The Delphi Technique: An experimental evaluation Technological Forecasting and Social Change vol. 23 pp. 89-94
WILLIAMSON, P. & WEBB, C. (1994) The Delphi technique: a methodological discussion Journal of Advanced Nursing vol. 19 pp. 180-186
And other articles
Franz, J. G. (1940). The place of the psychodrama in research. Sociometry, 3, 49-61.
Franz, J. G. (1942a). The psychodrama and interviewing. American Sociological Review, 7, 27-33.
Franz, J. G. (1942b). Research in psychodrama. American Sociological Review, 7, 45-49.