TY  - RPRT
TI  - Optical radiation measurements : high pressure sodium discharge lamp characterization for use as standards of geometrically total luminous flux
AU  - Bruening, Robert J
AU  - He, Minggao
PY  - 1988
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 594-14
DO  - 10.6028/NBS.TN.594-14
ER  -