TY  - RPRT
TI  - The rotary-vane attenuator as an interlaboratory standard 
AU  - Larson, Wilbur
PY  - 1975
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS MONO 144
DO  - 10.6028/NBS.MONO.144
ER  -