1. Miniature Tissue Equivalent Ionization Chambers and Their Use;Chambers;Aerospace Med,1963
2. Ionization Chambers for Radiation Data During Dental X-ray Exposure;Hudson;U. S. Armed Forces M. J,1955
3. Constructing Phantom Heads for Radiation Research;Richards;Oral Surg., Oral Med. & Oral Path,1963
4. Council Adopts American Standard Classification for Intraoral Dental Radiographic Film: Diagnostic Grade;J. Am. Dent. A,1962
5. Radiation Doses in Oral Radiography. I. Measurements of Doses to Gonads and Certain Parts of Head and Neck During Full Mouth Roentgenography;Bjärngard;Odont. revy,1959