TY  - GEN
AU  - Danielson, B L
C2  - , National Institute of Standards and Technology, Gaithersburg, MD
DA  - 1977-01-01 05:01:00
DO  - https://doi.org/10.6028/NBS.IR.77-858
LA  - en
PB  - , National Institute of Standards and Technology, Gaithersburg, MD
PY  - 1977
TI  - Measurement procedures for the optical beam splitter attenuation device BA-1:
ER  -