TY  - RPRT
TI  - Procedures for precise determination of thermal radiation properties : progress report no. 23 May 1, 1964 - July 31, 1964
PY  - 1964
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 8561
DO  - 10.6028/NBS.RPT.8561
ER  -