- W. P. Dundulis, Jr., informal notes.
"Structural Shielding and Design and Evaluation for Medical Use of X-Rays and Gamma Rays of Energies up to 10 MeV"
NCRP Report 49, September 1976
- B.R. Archer, J.I. Thornby, S.C. Bushong
"Diagnostic X-Ray Shielding Design Based on an Empirical Model of Photon Attenuation"
Health Physics 44(5), 507-517 (1983)
- C. H. Douglas
Program 508050, Texas Instruments PPX-59
Professional Program Exchange, March 1980
CCC-0462/01, included references:
- W.P. Dundulis, Jr.:
NCRP49 - Program Description. (October 14, 1984)