TY - GEN AU - A T Hattenburg AU - J L Heldenbrand AU - D K Ross AU - R G Stein AU - W Tao C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1980-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.IR.80-2052 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1980 TI - Energy budget procedures and performance criteria for energy conserving building illumination systems: ER -