TY  - RPRT
TI  - Preparation and calibration of phosphor standards 
AU  - Greenough, M L
AU  - Hammond, H K
PY  - 1974
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 74-553
DO  - 10.6028/NBS.IR.74-553
ER  -