1. BIR (British Institute of Radiology). Treatment simulators. Br J Radiol. Supplement 23, London, 1989.
2. British Standards Institute. BS5724: 3.1 Medical electrical equipment. Part 3. Particular requirements for performance. Section 3.1. Methods of declaring functional performance characteristics of medical electron accelerators in the range 1 MeV to 50 MeV. Supplement 1. Guide to functional performance values London: BSI, 1990.
3. Radiation therapy planning, Cross-sectional information and treatment simulation;Day,1983
4. (American Association of Physicists in Medicine Radiation) Therapy Committee Task Group 53: Quality assurance for clinical radiotherapy treatment planning;Fraass;Med Phys.,1998
5. Report 81,1999