TY  - GEN
TI  - M. F., L. F. AND V. L. F. RADIO PROPAGATION
U1  - 621.38411 
PY  - 1967///
CY  - London
PB  - The Institution Of Electrical Engg.
KW  - Radio Waves
KW  - Ionospheric Radio Wave Propagation
KW  - Ionospheric Radio Wave Absorption
ER  -