TY - GEN AU - Chernoff, L C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1963-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.198 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1963 TI - Photometry of projectors at the National Bureau of Standards.: ER -