TY  - RPRT
TI  - Climatic charts of the surface refractivity for Germany 
AU  - Bean, B R
AU  - Ozanich, A M
PY  - 1958
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 5588
DO  - 10.6028/NBS.RPT.5588
ER  -