TY - GEN AU - Donald A McSparron AU - Kshitij Mohan AU - A Russell Schaefer AU - Edward F Zalewski C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1972-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.594-2 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1972 TI - Optical radiation measurements::photometric instrumentation and research (1970 to 1971) ER -