1. Determination of absorbed dose in a patient irradiated by beams of X or gamma rays in radiotherapy procedures;International Commission of Radiation Units and Measurement,1976
2. Quality Assurance in Radiotherapy: clinical and physical aspects;Cunningham;Int J Radiat Oncol Biol Phys,1984
3. What degree of accuracy is required and can be achieved in photon and neutron therapy?;Mijnheer;Radiother Oncol,1987
4. Accuracy requirements and quality assurance of external beam therapy with photons and electrons;Brahme;Acta Oncol,1988
5. Accuracy Requirements in Radiotherapy;Thwaites,1992