TY  - RPRT
TI  - DCTDOS : neutron and gamma penetration in composite duct systems
AU  - Spencer, L V
PY  - 1987
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 87-3534
DO  - 10.6028/NBS.IR.87-3534
ER  -