TY - GEN AU - Velma I Burns C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1960-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.6596 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1960 TI - Design and calibration of luminance standards for P4 phosphor: ER -