TY  - RPRT
TI  - Design and calibration of a remote-indicating, photoelectric brightness meter 
AU  - Douglas, C A
AU  - Nimeroff, I
PY  - 1955
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS report ; 4421
DO  - 10.6028/NBS.RPT.4421
ER  -