TY  - RPRT
TI  - Energy budget procedures and performance criteria for energy conserving building illumination systems 
AU  - Hattenburg, A T
AU  - Heldenbrand, J L
AU  - Ross, D K
AU  - Stein, R G
AU  - Tao, W
PY  - 1980
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS IR 80-2052
DO  - 10.6028/NBS.IR.80-2052
ER  -