TY - GEN AU - Teele, Ray P AU - Belknap, Marion A C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1954-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.RPT.3077 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1954 TI - Luminosity filter and thermopile for a physical photometer: ER -