TY  - RPRT
TI  - Antenna beam elevation angle for control of tropospheric interference between space system earth terminals and terrestrial stations 
AU  - Lutz, Samuel G
PY  - 1963
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 180
DO  - 10.6028/NBS.TN.180
ER  -