1. American Health Care Radiology Administrators (AHRA). Statistical survey. Sudbury, MA: AHRA, 1987.
2. Baaker AR, Greberman M, van Gennip EMSJ, eds. Technology assessment of PACS. Int J Biomed Computing 1992, 30 (34).
3. Braunschweig R, Pistich C, Nissen-Meyer S. Digitale radiographie = Kostennutzenanalyse. Radiologie 1996, 306-314.
4. Flagle CD. Pitfalls in evaluation. Proc First International Conference on Image Management and Communication. Washington DC: IEEE Computer Society Press, 1989.
5. van Gennip EMSJ, Talmond JL, eds. Assessment and evaluation of information technologies in medicine. Amsterdam: IOS Press 1995.