TY  - RPRT
TI  - Thermal and mechanical properties of polyurethane foams and a survey of insulating concretes at cryogenic temperatures 
AU  - Sparks, L L
AU  - Arvidson, J M
PY  - 1984
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 84-3011
DO  - 10.6028/NBS.IR.84-3011
ER  -