1. Patient exposure in medical X-ray imaging in Europe;Regulla;Radiation Protection Dosimetry,2005
2. Valuing the man-Sievert in X-ray diagnosis;Russell;The British Journal of Radiology,1987
3. Pioneers and early years. A history of British radiology;Burrows,1986
4. X-ray and radium protection;The Journal of the Roentgen Society,1921
5. Memorandum no. 2;X-ray and Radium Protection Committee;The Journal of the Roentgen Society,1922