TY  - RPRT
TI  - Prolonged space-wave fadeouts in tropospheric propagation 
AU  - Barsis, Albrecht P
PY  - 1961
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 88
DO  - 10.6028/NBS.TN.88
ER  -