1. How much light does the surgeon want?;Beck;JIES,1974
2. The color of the surgeon's light;Beck;Light Design Appl,1979
3. Committee on health care facilities: Lighting for health care facilities, CP-29;Beck,1978
4. The physician's role in quality control of medical devices;Beck;JAMA,1979
5. Light and lighting in the dental office;Preston;Dent Clin North Am,1978