TY  - RPRT
TI  - A survey of the techniques for measuring the radio refractive index 
AU  - Thayer, GD
AU  - McGavin, R E
PY  - 1962
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 99
DO  - 10.6028/NBS.TN.99
ER  -