TY  - RPRT
TI  - Annotated and indexed bibliography of experimental photon-attenuation coefficients for compounds 
AU  - Hubbell, J H
PY  - 1990
PB  - National Institute of Standards and Technology
CY  - Gaithersburg, MD
SN  - NIST IR 90-4282
DO  - 10.6028/NIST.IR.90-4282
ER  -