TY - GEN AU - B. Danielson C2 - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD DA - 1977-05-01 00:05:00 LA - en PB - NIST Interagency/Internal Report (NISTIR), National Institute of Standards and Technology, Gaithersburg, MD PY - 1977 TI - Measurement Procedures for the Optical Beam Splitter Attenuation Device BA-1 ER -