TY - GEN AU - C A Douglas C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1957-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.5294 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1957 TI - Photometer for the measurement of the effective intensity of condenser-discharge lights: ER -