TY  - RPRT
TI  - Preliminary measurements of phase stability over low-level tropospheric paths 
AU  - Nupen, Wilhelm
PY  - 1958
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 6010
DO  - 10.6028/NBS.RPT.6010
ER  -