TY - GEN AU - L Chernoff C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1962-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.7410 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1962 TI - A survey of the equipment and procedures for the photometry of projectors at the National Bureau of Standards: ER -