TY  - RPRT
TI  - Calibration of x-ray and gamma-ray measuring instruments 
AU  - Lamperti, Paul J
AU  - Loftus, Thomas P
AU  - Loevinger, Robert
PY  - 1988
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS SP 250-16
DO  - 10.6028/NBS.SP.250-16
ER  -