TY  - RPRT
TI  - A Fixed frequency, 9.1 Gc, field intensity recording receiver with extremely narrow bandwidth 
AU  - Hubbard, R W
PY  - 1961
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 107
DO  - 10.6028/NBS.TN.107
ER  -